There's been discussion on this forum about other things people do to self-soothe in addition to alcohol - drugs, overexercising, sex etc.
I'm glad you found this forum. It's saved me on many occasions, especially to make me feel like what I am feeling is normal, and letting me get it all out of my head.
I've felt sadness, despair, anger, frustration and hopless at times. It's all very normal. Keep posting.