Im making no progress on meditation Kay so I have pretty strong OCD which manifests as just this constant stress. Under therapists advice ive been meditating for several hours a day for a month. I've made basically no progress. I also tried doing this several times over the past few years. Same thing. I've tried different objects (vedana, breath etc) and nothing really changes.

However interestingly I've had these short moments of bliss that do occasionally happen. Not every session but its happened several times. What causes that.

So I'm already expecting answers that are basically like "you have to be patient" but it's been a 2 months (and practicing mindfulness throughout the day) and nothing has changed at all. 

I dont think im like "treatment resistant" because like i said there are those short moments of bliss. But the thing is i dont even know what im supposed to do during meditation. Like what am i doing. Is samatha the one where im supposed to be really concentrated? Is that whats causing the bliss?
RE: "I don't even know what I'm supposed to do during meditation" &amp; "what's causing the bliss?" - Congrats, you are very clear about what it is that you're not clear about. That's an awesome first step. 

The human mind  is an information machine. When you set a goal X and you attain X, we get "X = X" and that feels good. When you set a goal of X and you attain Y, we get "X not= Y" and that feels bad. When you don't set a clear goal (X) or you're confused about what you have (Y), there is no basis for comparison, so that feels like an ambiguous feeling, perhaps even anxiety.

In meditation, you are supposed to work on achieving perfect X=X. That's when you feel bliss. So, first of all you need to clearly define X. And then you need to work on attaining it.

In Buddhism, our X changes as we advance, from level to level. It starts pretty coarse, and then it gets more and more subtle. First we define X as "having no coarse cravings and no coarse negative emotions". Once we attain that, we redefine it as "having no worries". Once we attain that, we redefine it as "having no doubts". And so on. So on every level we achieve a state of mind that has less inner conflict and more inner harmony, and once we attain it, we congratulate ourselves on attaining it. And then we define X as "not worrying about our state of mind" - and we attain that too. So it's like a ladder.