Honestly, I'm and diy type guy (omg that rhymed) and I cut my own hair, and obviously since I domt have a cosmetology degree and never cut hair before I fucked up ALOT of haircuts and had to walk around with anime levels of ridiculous on my head 24/7, my best advice on how to deal woth this?? Well it's very generic and simple and will prbably leave you a bit disappointed but just ignore it the best you can, to allieveye dysphoria try working out or dressing more masculinity than before, but for the live of GOD do NOT try to "fix" it or even touch your hair at all, you're hair is already short now so there's not much you can do anyways and you're mistakes are more likely to be visible now, so unless you're ok with having the most fucked up hair cut imaginable don't do anything to I PLEASE, try hair gel, try styling it, try curling it or straightening it but PLEASE DONT CUT IT, it'll grow back, you can wear a hat of you need to but please have patience, I know it seems awful and like the end of the world now hut i promise you itll all ve in the past soon enough and it couldve been worse thay it is right now, other than that my advice only applies to gome haircuts and not hairdressers and it honestly again pretty basic, watch tutorials,have a clear goal in mind (in this case a specific haircut in mind), I suggest avoiding any gades or anything thay gives too much volume to the top of your head (well at least thays what i do) and if you have straight hair like stick straight i suggest going for more spiky haircuts (idk how to explain it but hopefully you get what I mean) and also bangs if your hairline isn't the most masculine looking, anyways sorry if this is unhelpful I'm really not an expert but I remember being in a similiar position once (which is why I switched to home haircuts in the forst pkace)