I think you're in somewhat of a limbo where you desire to take a break but just don't have the full motivation to give it the final kick to the butt, kind of like how I am right now. given that I don't know much about your personal life, I'm assuming that yeah maybe your break is due but probably won't happen until something really drags you out. 3 months should be fine, maybe
hmm this is one of the more difficult ones because I don't exactly know you all that well but I've witnessed your site presence throughout every single stint I've had on the site since you joined. honestly though, my opinion is that yes, you're probably due for a break. I mostly think so because you're around the same agegroup I was when I spent the most amount of time on this site but you seem to take it a little less seriously. a break could've seriously helped me out back then, which I only know now in retrospect after taking a hiatus that lasted over a year.
tl;dr: a 3-4 month break might definitely do you some good
no, I think you've established a pretty good rhythm when it comes to your site activity. you've stayed on it at a pretty healthy pace and are, as far as I can tell, in very good control of your life. you might want to take a break when you start college again, but again, I'm sure you have the self-awareness to come to the correct decisions at the correct times.
not quite yet. however, you definitely should take another long hiatus (6+ months) as soon as the summer ends. also, I have a hunch modding might start feeling appealing to you again, my suggestion is that you disregard any potential commitments with the site. you were doing fantastic this past year, and I think you're already aware of that, so you'll probably know when it's time to drop it again