Richard-
Did you completely overlook what I posted? I specifically stated to you that just because one person has their ideas about something (whether they came to their own conclusion or have had an odd experience with the situation in question), does not mean everyone else shares those same experiences or ideas and will judge them the same way. Again, you're trying way too hard searching for excuses that you can conveniently push the blame off onto instead of blaming yourself, when the source of your problems at this point in time is your extreme negativity. I think your absolute priority right now is in just recognizing how negative you're being here and how that's affecting the reactions you're getting.
If you go back and reread these posts, you may even find that you've slowly but surely frustrated a number of us who were just trying to help you out by continuing to have such a defeatist attitude towards anything and everything, including those suggestions you cherry-picked and claim to have tried.
Edit: Another thing I want to mention is, in your current state, even if you did manage to get into a relationship and the relationship were to come to an end, I truly wonder just how you'll react to that. For your sake, I'd explore the idea of just being content with your independence first or it'll be one giant mess if and when that happens to you, especially considering it'd be your first relationship and the odds are against you in it lasting.