Whenever I try to commit to being proactive, it always puts me in such an agitated state of being. The muscles in my shoulder tense up, instead of breathing normally I hold it in and sigh a lot, and I get really bad heartburn. I wind up feeling nervous in social interactions and my sense of fun and humor disappears. this seems to last until I give up on however it was I decided to be proactive.
Example #1: my current job doesn't pay very well, so earlier this I resolved to apply to better jobs and force my self do so on a regular basis. but after browsing some ads, the nervous symptoms appeared and kept getting worse, even after I quit and did something else. The next day at work they got so bad it almost felt like a panic attack, so I just gave up.
Example #2: Earlier today I wrote up a list of things I've been meaning to do. (#1. Do laundry. #2 Apply to some jobs. # fill out some medical paperwork. Etc.) At first I felt good and excited, but then the nervousness set in.
you need a drink to realax.
Maybe see a life coach or something. Medication?
maybe it's because u think about everyting u have to do all at the same time or one anxious thought after another. try doing one thing at a time and taking it one day at a time and set a reasonable time frame for yourself. and if u dont get the task done in time, dont beat yourself up because then you'll only focus on your failure. Instead, focus on your next goal one day at a time because tomorrow is not promised 
and no a drink would not help, it would just cloud your judgment.