I agree, definitely harder working alone. So far I spent energy on my partners trying to keep them motivated, trying to make them work and constantly pinging them, it was time, energy and motivation wasting, I could have focused on the project itself instead.

It happens all the time. Even when I had a partner with their own project. They start super motivated and within a month they drop and stop contacting me, so I have to contact them to work on their own project. Either they don't have time so I do all the work