Brake/ steering problem please help !

Hello everyone, I am new to the forum and have searched for the problem I’m having, but can not find anything. I have a 2006 rancher 350 that I just converted to super at disc brakes. I can not build any pressure to save my life. There isn’t any bulge in the lines and I believe my master cylinder is fine because it was working before conversion. I don’t think there is any air in lines either. What is the exact bleeding process for disc brakes? I thought I bleed them correctly but I guess now.
Steering problem. After disc brakes installed 26 bighorn tires and now it is HARD to turn the steering wheels left and right. I greased everything before putting brakes on and put evything back together correctly. Only thing I didn’t do was replace bearing which I’m going to do this week. I forgot bearings at dealership after I was an hour away the other day before putting disc brakes on
If anything can please help it would be greatly appreciated !!!