I split constantly, overthink everything and think the worst of every situation. I don't know anymore which ones are my actual thoughts. 

Do I really think my partner is a bad person? Do I really think we should break up or is it just my BPD talking?

Am I really happy or I am just trying to distract myself from my negative thoughts?

Do I really like this new thing or I am only doing it to be accepted or liked?

Do I really want to do this or am I just trying to find a meaning to my life or a new thing to obsess over for a while?

I don't know myself and this is exhausting.