I dont mean for this to sound patronising, but I think everyone reaches a stage in their life where they stop caring. I probably stopped caring once I reached my 40's, you're just not there yet. I used to be like a mouse on here overthinking what I'd post when I first joined, now I don't care.
Remember, these people online don't care enough to hate you. You might get on their nerves, or you're not their cup of tea, but they don't hate you
Whatever your Taste in Music!! Part Deux