So I came to Thailand in the beginning of June on a 60 day tourist visa. I left at the end of July and got my 30 day stamp. My visa is done in a week, can I leave again, apply for another tourist visa and come back? Is there a limit to how many tourist visas you can receive in a certain time period?

No official limit, but depends on the consulate where you are applying.

Did you go to immigration for the 30day extension

It appears you obtained a 30 day extension of stay rather than leaving and returning to Thailand and that you had a single entry tourist visa which has been used.

There is no set limit on the number of such visas available but after 3 it may become a hunt and pick to find a Consulate willing to provide. You may even be able to obtain a two entry tourist visa now.