Is my income Halal even if my skills were learned from a pirated source?

I'm student and from a middle class family. Most of the time I don't have money. Everyone knows how much struggle a middle class family boy have to do. So I share my problem's with my friends. One of my friend give a paid course which he download from torrent site. I didn't know much about torrent , so I learn that skill and now I'm able earn money from that skill . That particular skill name ui ux. Now I want to start job or freelancing with this skill. I know downloading course from torrent is Haram But my question is : "From now if I work hard legally from that skill, my income halal or haram?" Sorry for my poor English.