Long-term subscriber. Posting back after years.

Background: 27yr old male. Broke up after a 4 year relationship. Ugly break up. Trying to get back into the game.

I still feel so rusty after 4 yr in a relationship but trying to re-build confidence slowly once again. Fortunately I kept my sense of self during the relationship. Yet I'm doing all the usual stuff to help with the breakup; keeping busy, working out, improving my social circles, trying new hobbies I've always wanted to do etc..

Now I've read that trying to get back into the game immediately (breakup was 2mo ago) is probably not the best way to go about things. Trying to build core confidence without needing validation is probably the ideal way.

Having said that I decided to download Tinder. So here is the [FR]:

Me (27 - M) match with this cute girl (27 - F). I say something about her bio and we hit it off with some light banter. We exchange numbers and agree to meet for a date later on in the week. I was busy during the rest of the week so left the date for the weekend (also doesn't show neediness I guess).

We exchange a few memes before the date and she seems like a really cool girl. I try not to write to much to prevent from having no conversation IRL.

We went to this wine place as we both like wine and the conversation is flowing. It might be cos I'm still rusty AF but I could not gauge whether she was into it or not. One minute she'd appear interested the next she'd drop a random remark. Push pull maybe? Or just me being too much in my head.

Anyway, after the bar, I tell her we should go swimming (used this before and usually works). (I live in Spain btw). She says we could go to a nice place on the beach but that she wasn't gonna swim. I try to make fun of her and be playful but she isn't having any of it. It's probably then that I started overthinking things and whether she's actually interested or not and it rly screwed with my head.

The other thing is that when I was single before, I used to date younger girls. I had never dated someone my age or older. She looked like someone who would clearly see through any of my BS.

We go to the spot. I jump in and swim while she sits close-by and we talk about all kinds of stuff. Then it started to creep on me - how the fk do I make the move. My problem was that a) I did not do much kino (we were sitting opposite each other at bar) and b) I hadn't really veered into sexual topics.

Half an hour goes by and still no move. I start to develop that weird gut feeling telling me 'just make a move you pussy, she's still here after 3 hours so clearly she's interested'. Anyway, this thinking starts to fk with my confidence and it shows, my voice is creaky not confident like earlier at the bar. Then I finally discover a shred of balls and while we're talking and laughing, I say "so are we gonna keep on talking or are we actually gonna make out?".

She starts to laugh awkwardly and she says "that was smooth" in a sarcastic tone. I admit I had just broken up (and that I'm rusty af) and she says she had also broken up a year earlier. We make out a couple of times. (Not sure whether partly out of pity)

We walk back to the car. We make out one last time and then she walks to her place (she lives with her parents).

1) Is it normal to be rusty af after a LTR? 2) What do you guys do to help you get out of your head? Does it get better with experience? I have another date lined up with another girl and I'm afraid I will screw it up again. I know I need to work on my tone, touch and escalation. 3) I'm pretty sure that she won't message back after the lack of confidence I showed at the end but we got on kinda well. Is there any way to message and say thanks for the heart to heart we had about previous relationships?

Sorry for the long wall of text.