I know how well it sucks. Ensure your finances first, and take a while 2-3 days to get over it.
Then take a week to brush up on your interview prep and technical skills, update your portfolio and resume.
After a week, you should be good to apply. Apply to a lot of companies, get any offer first. If people ask notice period, tell you've a month. Once you get one offer, then you can go for ones with better pay.
I've personally applied to more than 50 companies and got heard back from around 10, so be prepared. As with everything else, this too shall pass.