i just recently got my car running (sr20ve in b13), and it started up fine and runs good. first time i ever started it, it wouldn't start, it wasnt turning over, but all the electronics were working. i wiggled around the battery terminals and it fired up. after a few days of driving it, everytime i turned the car on, the turn-over sounded weaker and weaker, and eventually wouldnt turn on anymore. all the electronics still work, but the car wont start. ive tightened the terminals, wiggled them around, but no luck. ive been compression starting it the past few days, but it gets annoying after awhile.

It runs perfectly fine, except when i turn off the car. then im stuck and aint going anywhere.
i dont know if its the starter for sure.....can it be due to bad battery terminal?
thanks
eddie