Car will no start

So I got a used car and have been driving it for about a year. Since I have had it I noticed that there was some electrical problem (probably coming from where the car was hit on the front right side). The left blinker has always blinked faster and sometimes I here a weird clicking sound when I am driving that goes away and sounds like the blinker). Now today I got in it and the TCS light, battery light and parking brake light were all on and the radio lights were flickering. After driving it all day with no problems I went back to drive it at night and when I put the keys in it seemed like the battery was really low, and the left blinker was going a million miles an hour! So I started driving at night and then electrical stuff just started shutting off periodically, first the radio, then the odometer and rpm meter, then the dash lights, then all the lights, then the car jutted to a stop in the middle of the road. I pushed a ways and tried putting my key in thirty minutes later and it seemed to have all its power back, but would not turn over, just clicking. I jumped it and it started up, then began to lose power faster than before until it shut off again. Is it electrical or the alternator? Any insights appreciated, thank you.