Whats a good alternative to alcohol?

I want to give up drinking…its too expensive and hangovers suck…is there a good alternative that could help me relax and be more sociable? (nervousness is a problem for me and marijuana isnt an option as it just makes me freak out)I always have a great time when I am drunk even though sometimes I wake up thinking oh god why did I do that….. In an ideal world I wouldn’t need chemical confidence but alas alack this is reality and I do…any ideas?