Do not go to the number you left on. You know why, and it is nothing to do with your back.
It is that you want a witness for it.

Start at half. Be seen doing half. Survive being seen doing half.
That is the actual session today. The lifting is incidental.

And do not book anything for eight weeks' time.
You are not owed a plan. You are owed a second session.

The Book of the Fallen — Arrival 63:7