Have I caused neurological damage?

Hello, I’m 19 years old, and I’ve been taking antidepressants (Lexapro and Trintellix) for anxiety and OCD for a year and a half. During the time I was on antidepressants, I regularly consumed alcohol every weekend, occasionally used cocaine, and tried MDMA once. Currently, I don’t use drugs, but my mental state is worse. I feel depersonalized, emotionless, like I’m on autopilot, dumber, and I have visual fog, as if my visual perception were impaired. I feel dissociated every day. Now I believe this was triggered by substance use, even though it wasn’t regular. Or perhaps by the combination of antidepressants and recreational drugs—I’m obsessively thinking that this interaction ruined me. Or maybe it caused neurological damage.