Thanks for the replies. Unfortunately I didn’t backup my files prior to the install. I did everything via the admin panel/ dashboard. After installing the BuddyPress plugin itself, one of the options appearing at the top of the dashboard was to upgrade my current theme, that I did. It was a 3 step process I believe, the 1st or 2nd being updating my original theme files.
I still have the original theme files from when I purchased the theme, though would I have to overwrite all the current theme files with the original? I have made some changes throughout the ones I had, which probably means I’ll be back to where I started, but also, what about the plugins I already have installed? Would overwriting the current theme files with the original ones cause any harm or disruption to my currently installed plugins?