Sexual frustration?

This is embarrassing to ask since I’m almost 22, but what does sexual frustration typically feel like? Because danggg, I have been feeling horny as heck these past couple days… and add on my overwhelming anxiety and stress about work and school (finals soon lol), I feel like I’m going to explode.

My bf and I have had a pretty steady routine of having sex 1-2 times a month ever since September. It didn’t bother me before, but Ive been thinking about it more lately and it is starting to bother me a little bit… I feel like it’s all I’ve been thinking about. I guess I didn’t really mind before since we are both full-time students with part time jobs and we only get to see each other 2-3 times a week anyway, we are exhausted half the time and there isn’t really any time to do anything. And it’s not that it bothers me in that I feel unloved or anything like because we have great chemistry, we cuddle, kiss every chance we get, take naps together, cook meals, play games, etc. We even touch each other a little bit - but it never really escalates to sex as much as I would like lol I just feel like I have a lot of pent up sexual feelings and I don’t know how to address it with him. And I’ve tried masturbating but it honestly doesn’t feel the same anymore and I just felt worse - I need my man’s touch and I don’t know how to tell him 😅 Any advice now how to address this situation, or idea of what the situation even is? lmao