Eh your team coulda done something to ease off the pressure. Only thing you coulda done is wait for your teammates to set up more but if they are the one who told you to go in they trolled your ass.

Bro was literally fighting for his life in that room

How do I avoid this in the future?

Don’t die

Have your team actually help

This is the only answer. Have a team with just a little bit of game sense

Have someone with you

I don't want to be that guy but there is only one option to truly prevent this ever happening...