Hey! Great job getting first author on two of those papers. Are they just a few hours a day each? Can you handle them all? Don't let your mania make decisions for you, no matter how exciting it seems. I'm glad you have options, but I really have to warn you about taking Three summer jobs, tho, as mania tends to crash. You might want to pare it down to only 2 jobs so you don't burn out half way thru the summer. And choose the two you can still do if you do crash.
Take care of you~ Buggs