Feel like a total failure and feel my life is going nowhere?

Just keep pushing through with your studies, some people are late bloomers and you will meet your match later in life. You are 23 you have a whole lifetime a head of you. Try going to places that interest you and seeking out other people who have common interest as you. And honestly dating etc is all drama and crazy stuff until after your 25 and people grow up. but i know a lot of guys that never had gf's until after school and they ended up with happier lives then the popular people who seemed to have everything in life. You will get there just have patience