Battery light has been going on then off for couple weeks sounds funny under hood and....

The battery has been going on and off for a couple weeks now. Now this battery is only 4 weeks old .and the one prior was only 10 months old. where i took it said the battery had a short, So now 4 weeks after this new one i get the battery light going on occasionally. Now yesterday I tried starting my car when i got out of the store and nothing so I had to ask someone to jump. That got it started but as I'm driving every single dash light came on from the check engine to my traction light that only comes on in the winter (wis). Then i noticed that the rpm's were way over 3 to almost 4 and i was only going 30 mph. I just wanted to make it to the house which was about 4 mi. By the time i got there i just barely pulled in the driveway and all the interior lights ;dash radio,buttons went out and the heat just goes to full blast when i didn't even have it on. i turned the key to off and realized windows were down and sunroof. asked a neighbor for a jump but then i couldn't even open the trunk to get my cables out. Their is no other way to get into the trunk which i never realized which is really stupid. Some of the lights worked and the locks would lock and unlock with the remote but that was it. i eventually got it hooked to a battery to get the windows up but this is so frustrating. already put $1100 into this car this year. Ive ownced this car since 2011