The OSU Craft Center has a sewing studio, complete with tools and machines available for student member use.
To use the OSU Craft Center space and tools you will first become a member, if you are sewing you will need to sign a sewing agreement form, if you plan to use the sewing machines you will need to pop in during tech time and get an orientation. You can also pop in during tech times to get some advice and help.
A bit more about the sewing studio policies.
Basic alterations - there is a playlist with more specific alterations.
Machine tension troubleshooting