Ignore those that don't agree with your plans. Never let folk impose their morality on you.
You want to go to college? What do you want to study?
Life can throw you some bad cards all at once at times. Solving those little problems can make it less overwhelming and more manageable.
Attraction is a subjective thing. You build a life you're happy and confident in and people will find that attractive. Looking at your picture, I would be amazed if you didn't find someone attracted to you. Be patient, it'll come.
The hormones has been pointed out as possibly having an impact. Maybe give yourself a few months break to see how you feel, then go again. I'm not advocating stopping or quitting, just a pause to tackle a few other life issues before going on with your journey. Life is a marathon and not a sprint and sometimes a rest helps get through that next bit.
Also, sometimes anti-depressants can help at the lowest times. Worth considering. Counselling could be better if it's something you can get access to.