Hello Susanna, welcome to the forums.
If I can explain, if possible what happened to me when I was doing an online help for people suffering from OCD, is that yes it supposedly improved, but as soon as the course finished I had no one backing me in what or how I was feeling, so I then went back to how I previously was.
It doesn't matter if you are able to 'control' your OCD with the assistance of a psychologist, but as soon as they say 'we don't need to see you anymore', then it feels as though someone has pulled your legs away from under you, it's lonely being out in the world without the help you need.
OCD can happen once again all of a sudden and return without any warning, starting off at a low level, then building up to where it initially was or perhaps even worse.
Maybe they could direct you onto another group or situation where you can still get the help you need, I'm sorry but you can't be left to your own devices, not with OCD, especially if that's where you want the help.