The 5min was the trigger for me for an entry long at the bottom and it had some supporting tech confluennce on 15min in respect of the patterns or component parts I lookm for and that are part of my overall trading edge.
IT was, and we had a little triple bottom on the M1 coupled with a rejection of resistance on EG.
You are right the more confluence there is with the larger TF's the more important the levels become.
A big problem the "newer" traders have is that they don't act on a trigger, but wait for confirmation then get jumpy when the confirmation retests the trigger.
If you act on the trigger without too much tought, your chances of success exponentially increase over time.
It is a fine balance between having the patience to wait and getting in at the right time.