Well girl, I can understand your situation. I know you have worked hard for JEE advanced but I believe with 20k CRL rank you won't be getting decent IIT which I can recommend you.

Though with girl, there might be an increased chance of your's getting a seat but with such a rank it is very hard to get.

Regarding you CSE, had you get a rank of 10k that would also not be sufficient this time as their were increased number of girl aspirants were onserved.

So, I would suggest you to prefer state engineering colleges or decent NIT's.

Also, I would recommend you to do take part in JoSAA and go to through all the round even the spot round. May be, some good fortune can turn your destiny.

Thank You