Surely so, i tried to make poker my way of income several years ago. I spent 10-12 hours every day playing 4 tournaments one time. It was awful for me. So no more job in poker 
Did it not occur to you to choose a poker modality with more variance? Oh, at that time maybe spins would not have come out, otherwise you would have been happy to play them.
The main idea was that i was waiting for nice cards. When i got strong cards, i fold all other tables. Profit grew up fast, but for 3-4 first hours, after that i began to make mistakes. And everything was nice - no one diverted me, no calls, big monitor - ideal conditions. I think that it was interesting experiment, and it is possible to get some profit this way, but you have to modify your game tactics.
Maybe choosing a modality with less variance, with fewer tables, and playing fewer hours would have been better for you. In poker it is very important to control the tilt and what you say has all the ingredients to end up tilted.