How can I stop feeling this way?

I am an introverted person, who's shy and as a result of that my life has been really difficult. Most people I have come across have looked at me in a negative light, misunderstood me and because of this people have overlooked, ridiculed, insulted me for years. All I have ever really wanted was to find someone who accepts me for who I am.

I tried to show interest in some people but it didn't work out, overtime they lost interest in me. I felt really betrayed by that. Sometimes I couldn't break the ice at all with some people, they just didn't care at all. I am currently struggling with really bad loneliness and have done for quite some time.

People tell me that eventually you'll find the right people who value you but right now it feels really bad and also the fact that people are constantly raising the standards of what kind of person they want to hang out with has me feeling even worse. Sometimes I get very anxious that no one's gonna like me in the future and this feeling is what I really wish to stop but it's hard because deep down I don't want to end up alone.