How do i find people to travel with?

I met my traveling companions through my French instructor at school.

you will find them as you go along.

You could consider getting on the Fodor’s forums.

Agree with @mammal. In fact going alone makes it easier to meet people – you will naturally put more effort into seeking them out than if you are traveling with a buddy. The flip-side is traveling with someone else can help spread out costs and can feel safer. Can check out the fora on couchsurfing.org also. Staying in hostels can be a good way to meet fellow travelers.

thanks very much for the advice :)

I have traveled quite a bit alone. You do meet people. You also have some dinners where you are alone, but then take a book. In Greece, where I had decided I would just sit there and have a long, slow dinner one night, the happy people at the table next to me kept somehow getting closer and closer, and finally started putting their food on my table! Adventures will be yours—even though there will be lonely times too.
I am headed in October for Barcelona alone, and anticipate all of the above.