I'm midway through summer with an internship and college coming up. Yet I haven't finished a single personal project cause I get lazy or frustrated. Yay destruction of my future!

Take 2-3 days "off" your personal projects - don't think about them, don't try to continue, do something completely different instead.

Then come back, if you can work on your projects again, do so. If not, try to determine why you're trying to avoid working on them e.g. something that wasn't as cool as you thought, something that has a higher difficulty than you can manage atm, something that's too easy but time consuming ... etc.

Also, welcome to devRant. :)