I am 39, and the closest I have come to romantic involvement is when someone smiled at me on the street last week and I panicked, froze and totally deadpanned them
, quite literally never been kissed.
I completely echo your sentiments above, I came to the conclusion that I cannot fix myself and have recently started seeing a psychotherapist to try and tackle my avoidant behaviors. I came to this decision after taking many months with a fake OLD profile before eventually creating a real one, to then end up totally unable to 'swipe right' on anyone at all, looking at OLD has become a pity party.
Put simply, the feelings that stop you from forming relationships are stronger than the ones which tell you that you want a relationship.
I think much of the advice in this thread is well meaning but very unhelpful, 'just go on a few dates' sounds exactly like 'just cut your arm off' or 'just throw yourself off a bridge, honestly its great fun' and for me only serves to highlight how differently I feel about this to 'normal' people, strengthening how pathetic I feel am.
OP, I noticed a couple of specific phrases you used that really resonated:
"tbh I just can't believe that they would be interested in me."
This is exactly how I feel too, this is because we do not value ourselves, so cannot believe anyone else would.
"I like my job, I have my own flat, I drive and I'm quite well travelled"
I say things like this to myself as well, rationally I know I have worth or value, I know there is no real reason I cannot do this, yet still I cannot.
"They all found it so easy. I'd be too embarrassed to go on a date with anyone they knew because I'd inevitably make a complete tit of myself."
You know these are examples of mind reading and catastrophising?
I do this too, it's because I think people will always assume the worst about me no matter how well I do, for me it's down to low self-esteem and extreme waryness of others.
It was actually a course of CBT for depression and workplace stress which made me realise just how much I valued being able to talk to someone completely openly, and thus how much I was missing by not being in a reationship.
I'm afraid I don't have any helpful advice, all I can say is that you do deserve to be loved, both by you and by someone else, if self-awareness is not enough to overcome this, then professional help might be a way forward.