Brake Light On problems of the 2017 Subaru Crosstrek

My brake lights came on while the car was parked and turned off. When I returned to the vehicle after work, the battery was almost completely discharged. I was able to call for roadside assistance through Subaru and received a jump start. (the same thing happened while I was backpacking the weekend of 9/21-9/22, but the battery was completely discharged. Another one of the members of our scout troop was able to give me a jump start. Previously, I had been having issues with the brake lights illuminating, but had been able to catch it in time before the battery died. In addition, while driving the car would lose the ability to accelerate for a couple of seconds, which could be remedied by me taking my foot off of the gas pedal. After the jump on 10/3, this loss of acceleration happened while I was driving home to the point where I had to pull over because the car would not continue moving. On a final note, I replaced the brake light switch the evening of 10/3 and have not experienced either problem since. ).