I sort of an introvert person that shy away from people. I sort of have a terrible way to introduce myself to people and have a really hard time keeping conversation up. Any tips on changing this social shut in that have problems keeping up a conversation up rather then rehashing stuff??

there is a diference about being a introvert and being shy.if you are a introvert there ins't too much you can change,anyone who is a introvert can't change they way they act,if they try to change it it denying yourself if you are shy i don't really have any tips

for introductions I find it helps to ask basic questions about someone. just to get to know them. most of the time this alone is enough to start up a conversation. also, if you ask the question you can make sure you end up talking about something you're comfortable with.

Find an extrovert friend and ask him for help. Since you're starting out, you'll have to create situations where you should talk to other people. It feels weird when you know that it is an artificial scenario, but just ignore that feeling lol! Go with your friend and ask things to people. Even if the conversation drops, your friend will be there to help you. After practising somewhat go alone and talk to strangers. Strangers are more easy since it's ok if you screw up since they don't know you, correct?
Good luck! Your friend is the key!