Making friends, 27 years old

I'm so tired of always feeling so left out.. I don't like feeling like I'm having my own pity party, but I honestly feel so sad and depressed knowing that I reach out to my friends, trying to get together and they dont seem to have the time, but then I'll see them out with other people. I get everyone is busy, I really do. I just wish I had someone to talk to. I can't seem how to really make a connection for a lasting friendship- this all probably sounds so juvenile, but it genuinely gets me down. Any tips on how to make friends at this awkward age.. I don't have any children, I just joined the ymca and hope to maybe meet someone there. Any advice is appreciated. ๐Ÿ’•๐Ÿ’•๐Ÿ’•