You sound a lovely guy and one day maybe the right person will come along but hey, maybe they won’t!
The answer is to learn to feel fulfilled and happy with just yourself & not have that contentment reliant on other things….i.e. girlfriend, job, relationships. I am VERY old (LOL!) and have only just realised this secret…. after a few disastrous relationships where I looked for that other person to ‘make’ me happy.
After a long, long struggle with life I have finally seen the light! I am working at doing what I want, spending time with friends whose company I enjoy and NOT chasing that elusive dream and amazingly I am the happiest & most optimistic I have ever been.
Tomorrow may never come…. you need to appreciate and enjoy each day in it’s own right. One day you will look up and find everything has fallen into place and you are where you want to be!
Tiny Buddha, Baggage Reclaim and similar websites do offer articles to help understand your feelings. As they used to say ‘count your blessings’ corny but true.
Don’t be so hard on yourself, be kind…. I hope you eventually achieve inner contentment.