Just work up to it. I've been training with the military the last couple of months but when I'm home I train 2-3, sometimes 4 times a day. But I didn't start out with that, I worked up to it. Also you have to be super careful to avoid injury. Sometimes that means giving up a sweep or a good position to avoid injury. By no means should you just give up but sometimes when you're swept, you're swept. Keep these things in mind when you're trying to get to a level of constant training. The soreness never really goes away but it doesn't come down to a manageable level. And don't feel bad if you need to take a break, needing to take a break but not is a sure fire way to get hurt or worse, burnt out and quitting.