You can fork endlessly and each fork won't matter one whit because they don't follow the longest chain secured with the most hashing power.
Or your fork can follow the longest chain and abide by the rules so your transactions are accepted by the rest of the network, in which case you're using Bitcoin and haven't forked.
Or your fork can follow the longest chain and abide by the rules so your transactions are accepted by the rest of the network, in which case you're using Bitcoin and haven't forked.