Brakes feel like they are not catching barely stopping the van

you probably have air in the ABS unit. this happens a lot with diy. you need to go to a mechanic with a scanner able to open all valves on the ABS so air can be bled.

I was bleeding from rear to front when I got to front passenger. Pedal got really lose and air came out. Pedal than had no resistance. We continued bleeding process and air continued to come out. After a few times pedal became hard again. Still feels like brakes are not grabbing. Is the wheel cylinder bad?

it still can be an ABS problem not letting fluid go to that wheel. try a power bleeder if still not working have a mechanic look at it.

I am poor. Going to mechanic not an option. Could the brake booster be the problem? I was going to to a few test to see if booster is good. Do you have any tips on checking it? Also, it was front passenger that the pedal lost resistance.

because it is one wheel it is not a booster it is more than likely the ABS. so try the power bleeder see if that is okay. otherwise a mechanic needs to look at it you cannot drive it like that.

Also, check brake hoses if a front wheel if bad replace both.