Last night, I slipped and cried all night, but although I had urges to slip again, I didn't. And I asked for hugs and comfort when I needed them. Afterwards, I felt better. When I treated myself to some soup due to this ordeal, I realize people need some ways to treat and reward themselves for going through hardships. Some may seem completely ridiculous, but if it works and if it cheers you up, that's all what matters.
So here's a list of good things you could do and ways to reward yourself. You can add on some of your own ideas (what to reward, and ideas for rewards). If anybody is SI-Free for a certain length of time/succeeded their goal in being SI-Free for X many days, they get hugs, pictures of puppies, etc.

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You were feeling really down, cried yourself to sleep, and asked for comfort from a friend, family member, pet, or BUS.
It takes courage to admit you are feeling down and need some comfort. Reward yourself with a cup of hot chocolate, tea, coffee, or another hot beverage.
Although you were trying to be SI-Free for X many days, you slipped after telling yourself that you wouldn't.
Just because you slipped doesn't mean that you are a failure! You created a goal for yourself, and just because you didn't reach that goal, doesn't mean that you lack willpower. Reward yourself for setting a goal by buying a new pair of thick, warm gloves/mitts, or a pair of fuzzy socks to keep you warm next time you feel unsafe.
You binged and tried to purge, but didn't.
Awesome! Yes, you did binge in the first place, but by not purging you are on your way to recovery. Reward yourself with something fun and spontanious-- Go to a corner store, gas station, or mall in fuzzy slippers, or perhaps your PJs, or with your hair in rollers! Hey, life's too short to worry, and you deserve something fun!