What to know before my first time

I’m 17 and I’ve been pondering the idea of deflowering for a couple months now and I am pretty sure I am ready. I’ve been doing extensive research on how to avoid pregnancy. Are there any tips on how to go about the first time? Maybe tips on how to avoid a condom breaking (ik that you should NOT double wrap because it causes friction and essentially breaking). I’m also pretty tight and I’m worried it will hurt too much. Any tips or stories on how you ladies went about it?