For someone who likes movies you seem very close minded...the original trilogy is clearly the best, but you watched the last movie of a mixed prequel trilogy....no wonder you're not interested! For your own sake forget about the prequel movies from 1999-2005 and watch the one from 1977-1983.
I don't say that in a mean or funny way, I'm very serious.
You could have regrets in a few years if you miss all the hype and reach of SW7, it's a movie you won't be able to understand or feel without watching the original trilogy.
Don't even bother watching SW7 if you didn't watch it because you won't feel anything and you will feel alone and out of sync.
If you have times for shitty movies you certainly have time for a trilogy that changed cinema forever.