What is wrong with my car is it the starter or alternator?

No, it's sounding like the battery from here. Start there - check the battery for the ability to sustain a load and state of charge. Lights and radio turning on doesn't mean the battery is good by any means. Once you have a known good battery installed, then check the charging system also to ensure all is well. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops