Holy shot your original numbers are very close to mine and your current numbers are very close to my goals.
It's a very doable program. I loved it because it's simple and actually very fast. You take anywhere from 1:30 second breaks to an upward of 5 mins between sets. This allows you to regain your ATP for the next set.
Allot of the times I found myself finishing my training session in just under 45mins. For the first year. As the weights got heavier I found myself taking the longer breaks between sets. This helped out immensely. Another thing is you have to realize that at some point you won't be able to add 5lbs ever single time. You will naturally hit a wall. Don't be disappointed or discouraged it happens to everyone.
I hit several walls throughout my two years. It usually goes like this. Your first walk is your OHP, then bench, then squat, lastly deadlift. (At least it was this way for me)
When you hit a wall there's several remedies you can do.
1. Take longer rests between sets. Sometimes I took a full 5 minutes, no joke.
2. De loads. Drop the weight down by 10% of what you're presently doing. Do that same weight for like 3 sessions in a row, then go back up. (I personally thought this would never work, but it actually did. This helped me allot when it came to my squat and deadlifts)
3. Take time off. Yes this is going to sound crazy. But there were times when I would get burned out of doing this, or I had no time because of family or work. Don't get discouraged. The time off can secretly be a God send. The longest break I took at one point was literally two weeks. When I first came back I was worried as fuck, that I was going to be super weak. I basically started back on a de load of where I left off. Doing that was great because I was able to still do my work loads at 100%. I did that for a week and I was back right where I left off and continued to add more weight.
Lastly keep a log book or journal. I remember when I started and then when I saw I was squatting 225 for 3 x 5 that was the most amazing feeling in the world.
Listen I don't care what other people tell you. If you can squat 225 x 5 times your likely stronger then 97% of the world populace. (I'm not kidding) I know you'll get some guys coming in here and being like I don't even warm up with that bro, but never mind them. Let the egotistical douche bags be just that.
Your here to please yourself and no one else. I don't care if I'm not the strongest guy in the world, heck I don't care if some of the guys that hang out in this subsection call *me* weak. Good for them! Lol. Just be happy with yourself, pace yourself, be patient and results will come.
I hope this helps.