Morning ladies! Reading this thread on my first day back to work following a personally awesome 2016 (shame about the rest of the world) 
. I've been flamed on here before so will post and run, but PM me if this resounds with you positively or you have any questions. It's a bit (!) of a long thread so skip to the end if you don't want the background!
Having RTFT I just wanted to throw a little light to any who feel they can't achieve what they want, or feel they have so much to achieve, they don't know where to start! I class myself a feminist who feels happiest in her skin when I look after myself. This isn't about me LOOKING good, this is about me FEELING good.
So, a little background; I have had problems with eating disorders since age 10, emotional eating, anorexia and bulimia. Subsequently I have been size 8 and size 22 and predominantly unhappy with my body, whatever my size. I have used the gym, run marathons and had phases of exercise; normally associated with slimming down for an event, or achieving a goal (e.g. running a marathon). Looking back now, I see I chose to exercise solo because I was scared of failing or looking stupid in front of others? If I chose not to do it, it only impacted me IYSWIM?
Skinwise I have acne, the really painful boil type skin. Which is sometimes dry 
and as I age, see the wrinkles forming.
I am pear shaped and like to look stylish but also like good value so mix top brands with High St.
In 2016 I battled some very big psychological demons (sexual abuse related). I also had a health scare which is now under control. The closure of that painful experience & the shock of an extended period off work gave me the kick I needed to focus on ME, my happiness, my health.
After so many failed attempts at finding "the answer" I decided to let go of planned regimes and simply join a gym. I honestly had no weight loss goals. I just wanted something to do with my husband (swimming) as he's a fit freak and it seemed like a positive example to set my kids when we have the weekly babysitter. And honestly, I feel like I've found a treasure chest at my local (cheap!) gym. My life has changed completely!
I have lost 2.5 stone, have instagram worthy make-up which is often complimented, have kondo'd my wardrobe so dressing is easy, a pleasure and I look pretty stylish (even if I do say so myself! 
) and hoping this doesn't out me, but I have newly fabulous platinum-purple-grey hair which I LOVE!
I honestly feel the biggest change has been the gym, and specifically, group classes. Whereas I used to fall asleep on the sofa every night, on evenings when both my husband and I are in, after we've put my young kids to bed, I now head to the gym for various classes with fabulous, inspirational, energising like-minded people. There is no mould for people who go to the gym; they aren't all young, fit, strong and lean. People there are all ages, shapes and sizes. But the one shared trait is they have all chosen to be THERE, not sat on the sofa, and together, we have fun.
So, I tried ALL the gym classes, found one to burn calories (Zumba) one to tone (with weights) and one to stretch (yoga). And I can't stress this enough; finding the exercise you look forward to (I think!) is they key to ALL your goals. Personally, I think finding people to enjoy it with and to miss if you feel like not going really helps too. I'm not sure how significant this is, but I don't call it "the gym", I call it "dance class" so my kids can relate to the classes they attend. And it's so much fun I do feel like I'm learning to move rather than exercising.
I now have so much more energy, when I get home I do chores, lay my clothes out for the next day etc. And this may sound weird but by using my body, I value it more so fashion, skin care, make-up etc all fall into place. This impacts your self-confidence so I challenge myself more, physically (so I now do even more classes, inspired by my new gym pals) and in other areas of my life. I won a national award at work and am now focusing on my career, but the exercise, fashion, skin care etc is all now just a part of my daily life, which feels so much richer.
In conclusion (and sorry this has been so long) whether my advice would be start exercising OR battle your demons and start exercising I don't know... I think it just dawned on me I must have been depressed virtually my entire life, as I never even knew you could be this happy. Which makes me feel quite sad!
Final pearls of wisdom; crest strips are ok temporarily. Try coconut oil pulling - it is my holy grail of teeth whitening! Takes 4-5 days to see results but easier, cheaper and more natural.
If you have acne, see a doctor. They can help.
Watch YouTube for make-up lessons.
Marie Kondo your wardrobe, if nothing else.
Know you have a choice. You do not need permission to do what you want. Own your choices. You are worthy of a fabulous life. 
And get off FB. That time-zapping leech is no friend to anyone.