Illness, travel, work and family will interrupt your training. This is not a sign that you lack discipline; it is what training looks like over years. The people who make long-term progress are not the ones who never miss. They are the ones who come back quickly.
The way you handle the first session back matters more than the length of the break. A calm, modest return builds confidence that the routine can bend without breaking.
What a break actually costs
A week or two away typically causes little meaningful loss of strength or muscle, and you may even feel fresher on return. Longer breaks produce gradual losses, but regaining previous levels is generally faster than building them the first time. How fast varies with age, training history and the length of the break.
In other words, the physical cost of most breaks is smaller than it feels. The bigger risk is that the break quietly becomes permanent.
Why how you think about it matters
After a lapse, it is common to slip into all-or-nothing thinking: the plan is ruined, so why bother. Research on self-compassion suggests that responding to setbacks with understanding rather than harsh self-criticism is associated with getting back on track, not with letting yourself off the hook.
A useful frame is to treat the missed week as information. What interrupted it? Was the plan too ambitious for that season of life? The answer often points to an adjustment, not a verdict.
How to restart
Begin with your next scheduled session, not next Monday. Use your minimum session if that is what you can manage.
For load, a reasonable guide is to come back somewhere lighter than you left off and build up over the following sessions. After a week or two off, that might mean using 10% less: if you were squatting 135 lb for 8, start around 120 lb. After a month or more, go lighter still and expect more soreness than usual in the first week. Resist doubling up sessions to catch up; the extra fatigue usually costs more than it gains.
What to do this week
Schedule one session in the next three days. Make it shorter and lighter than your old routine. Finish it, write it down, and book the next one. That is the whole comeback.