Learn how to (politely but firmly) say no if it's something you don't want to do
Don't judge yourself against other people - you are you, not someone else
Meal plan - cheaper and healthier if you can cook from scratch with no waste
Declutter your house regularly. If you're not sure about something put it in a box for 2 years; if you haven't opened that box in 2 years then throw it away (nb excluding things like tax records etc which have to be kept for a min length of time!) Don't hang onto things just in case - you won't need them.
Find a form of exercise which works for you and which you enjoy, and do it regularly
Find a job which doesn't depress you completely - all jobs have their ups and downs, but try to find one which makes you enjoy coming to work at least a little bit
Look after what you have already, rather than not and having to be replaced. Can it be repaired? Do you actually need to replace it?