Grammar can help. Being creative with your descriptions can help. One way to mix it up is to change up sentence structure. Another is to add more details that are revenant to what you are doing. I'll try to provide an example, but I'm not the best writer ever myself.
Your example is, "You do this, you do that."
First of all, this is two complete sentences connected with a comma. You need a period or semi colon between them. Also, the word and eliminates one "you."
"You do this and that."
Already better (in my opinion).However, let's change things up a bit.
"Doing this, you create the opportunity to do that as well."
This says the same thing, but it changes the order and adds a bit of detail. Now, it's stated that you did "this" to lead to the chance to do "that," which implies that they had to be done in order. You could also add detail about each item separately.
"Doing this, you feel exhaustion set in from the effort. With sweat pouring down your back, you do that."
This last one implies that both tasks are physically difficult. It adds something about what the reader is feeling. One thing to be careful about with this is telling a reader what they "think." If I write, "You think that this is hard." Your reader might think, "No, I wasn't thinking that." I try to avoid telling the reader what they "think" and tell them what they are feeling, hearing, seeing, tasting, etc. My goal is to make them think something based on that.
I'm 90% sure that IAP said something about this as well, but I hope this helps.
Edit:
IAP did tell you to focus on your senses and to imply things. That advise is great. Saying something like "your hands are numb" gets rid of the need to say "it is cold". Likewise, you can say something like "you gasp for air" or "your legs feel like jello" rather than "you get tired".