You'll find the sunnier days will help. I would put the clothes in the loft,buy a few bits to see you through that fit,and aim to eat sensibly for a slow loss. The clothes will still be in the loft when you're ready for them. Anything that is seriously unrealistically small,give to a charity shop.
I am in same boat as you currently size 20 I used to be a lovely size 12 and I still have my old clothes I refuse to throw them out because most of them are designer labels I paid a fair bit of money on so can't bear to see it go without getting my use of them.
I reached a point where I am just tired of being the way I am so its enough motivation for me to get fit I think the hardest thing for me is realizing that it isn't going to take me 2 weeks of hard gym sessions but at least 1 month if not more because of the amount of weight I have put on.
I am also a keen cyclist and the fact that I want to get back on my road bike and feel fit when I do also acts as a motivator.
I have taken a favourite top or two and hung it up in my room to act as a constant reminder that this is what I want to get back into. It helps.
Ok i'm a woman of a certain age, have put on a little more weight than i should carry, 12 stone and 5'2",, My wardrobe has some lovely clothes in it, however i cannot get into most of them, should i get rid of them?? or try AGAIN to lose weight?? what would you do and HOW??