Has anyone lost all feeling despite using trimix

I am one yr post surgery, I’ve tried Trimix and Bimix only occasionally do I get an erection stiff enough for penetration it I have no sensitive feeling, thus no chance for an orgasm Am I expecting too much too soon ? I’m reluctant to continue injections it gives me or wife any pleasure. I’m not fond of antidepressants but feel I should consider it , often it doesn’t help , any suggestions what has helped anyone. I’m drinking more but trying to to give up alcohol, that might be a start.