New to Myfitnesspal

Hi everyone, don't know if anyone is going to read this but my name is Kieu Nguyen. I'm 19 years old currently a full time student in college majoring in nursing. Today I weighed myself for the first time in awhile and last time I checked I was 160 pounds, now I'm 175! I thought to myself enough is enough and I want to stop this endless cycle of me losing weight and gaining it back and then losing weight to put it back on again. I never thought I would join myfitnesspal but I thought many people are also going through the same thing as me and I could relate and talk to others going through problems with weight. I'm starting insanity tomorrow and I'm excited but worried if I can actually do it.