What to Do if You Find Out That You've Been Talking to an Underage Girl

My question involves criminal law for the state of: Texas

Girl I met on Instagram, we were friends and talked a bit. We chatted a bit about video games and such. She would complain about guys in her school and I would offer advice. Sometime we would trade pics but they were nothing explicit, all the photos I sent would be put up on my Instagram most of me just playing video games or relaxing but a lot of time I'd just be in a shirt and underwear and sometimes I'd be showing off my "abs" (All of my pics followed IG's guidelines. 0 nudity and not sexual) hers didn't go up on her Instagram but they also had 0 nudity and were not sexual at all. My biggest worry right now is the pics she's sent me, again nothing explicit, some of her face and some of her in like a bathing suit. Not posed sexily or anything. More sent in a "Look at this!" kind of way and one time she said she got a new one and I said "Oh cool I wanna see" so that's currently my biggest worry, that and I think one pic of her might have been underwear but I'm not certain. I worry because a the thing she was wearing was essentially underwear

The lewdest things I said were things like "Oh no hugs" or "That sucks cuddles you" one time she was talking about a guy she liked and and asked what some turn ons for guys were I gave a few. I think there was a time where she admitted to "Playing with herself" and said that her BF would be mad about that I said "I say do it, honestly I just got finished playing with myself" again though in no way directed towards her I just thought we were having a frank conversation. Last night though she revealed she'd been lying and is actually 16. I told her I wasn't okay with that and wish she told me and then cut contact. She messaged me last night (after I cut contact) saying the reason she lied was because " I can’t handle another relationship right now and that’s what everyone seems to want from me except for you...". This morning she had deleted the pics she sent me and apologized.

I never said anything like "Yeah lets have sex" or "Let me describe what I'm going to do to you!" most our convos were just us talking about video games and a few were she talked about guys she liked and wanted to date but never anything beyond that. I said she was cute but I doubt that's grounds for jail.

You can talk all you want. If you convince her to meet you for sex or send you pictures of her naked or performing a sex act, you're in trouble.

Just stop talking to her.

Yeah I instantly cut contact and I never saved the pics to begin with I really only saw her as a friend, so when she said she was 16 I've been panicking that I'm going to jail

I just feel nasty for sending pics of me in just a tshirt and underwear and seeing her in a bikini or underwear(still not sure but let's assume) just worried I've broken the law and will end up in jail