All I did in the past 9 months is smoking weed in a single room. Left my job, irregular meals (sometimes single meal a day), living relationship, getting intimate with gf all the time, watched lots of pornography, high all the time.?

Good first step. Asking for help through Health Tap is an excellent first step. You need professional support. Please start by seeing your doctor and then a mental health professional. Isolating won't help. It will make things worse. Have courage. Peace and good health. Shanti.