Ooh I had a list like yours and I swear these have changed my life (well, you know - made a big difference)
Teeth yellow - pearl drops instant white toothpaste and crest strips
Cracked heels - fake footner socks from China off amazon (these are amazing! Your skin turns incredibly dry, falls off in a disgusting manner and then you have baby soft feet underneath!)
Nails random length and weak - I was same here too, I’ve always had gel. I said earlier on thread (different name) that my nails have never been better now, I’m so proud of them! I buff them every few days, and use a cuticle oil. They are so strong and healthy looking!
Hairy legs - I bought a Phillips lumea at start of lockdown, I had one before but have started using it again. Changed my life. I have a wonderful hairy chin which has been beaten back into submission!
Face - I tried some of The ordinary acid mask. It’s bright red and had made the biggest difference to my skin ever. I recommend it to everyone. It’s only about £7, and my face is like a baby’s bum!
Oh! And someone recommended me o’keeffes working hands hand cream and I keep it by every sink. I love it!
I sound like I have my shit together from this reply and I feel like a total fraud as I’m sat in pyjamas, have roots too and am 2 stone over weight.... but ya know, baby steps and all that!