Struggling with social cues

I’ve recently became close with someone. I would describe our relationship as FWB, where even outside of the benefits, we are really good friends and really enjoy each others’ company. My biggest fear is to fuck things up and lose him. But he keeps reassuring me he isn’t going anywhere as long as I keep working on myself. He is very supportive and generally amazing, I don’t deserve him.

One of the things I’ve asked him is to point out things that I do or say that might need a bit of working on. I’ve always struggled making friends and being social in general and it’s something he is happy to help with. Certain things I never realized I was doing, others I was away to a certain degree. I feel that I am making some good progress on some of the things that have come up.

However, one topic that has come up and that I’ve realized I am doing perhaps a bit more than I thought, is failing to recognize social cues – not realizing where to draw the line and stop, and not noticing when I approach and often cross limits. Usually they aren’t “serious” things, but just little things that, after a while gets annoying. I am really struggling to catch myself before I cross the line.

I am wondering if there are resources freely available online that I could read up on, even better would be something like a workbook with little exercises that I can practice and work on improving this struggle of mine? I am working on getting into therapy but finding someone who is available and affordable is rather difficult and instead of just sitting here waiting, I’d rather get started, even if it’s just a small step in the right direction!

Any help or pointers is greatly appreciated, thanks!