Growing my first plant: LST advice

Hello everyone, I'm hoping everyone is having a great day and a great grow
The random bagseed I've planted its growing pretty nicely I think, so I was wondering if I should already start LST.
I've read that the sooner the better but I don't think my plant it's ready yet.
So should I wait until she develops one ore two more nodes to start training her?
I know that this is probably a dumb question but I wanted to have some advice from people with more experience of me.
Another question that I have is: is there any way to understand if its an auto or photoperiodic other than wait to see if she preflowers? My plant is 25 days old and seems to me she is growing so fast and I don't know if its just normal or could be an auto.
Thanks in advance for all the help and happy growing everyone

I grow autos and my preference is to wait for well established 5th node (I count 1st multi fingered leaf as 1st node) before I top or Lst. I doubt that's an auto as it would have preflowers by now or that's what I get with the indica strains I grow.

quirk said:

I grow autos and my preference is to wait for well established 5th node (I count 1st multi fingered leaf as 1st node) before I top or Lst. I doubt that's an auto as it would have preflowers by now or that's what I get with the indica strains I grow.

Click to expand...

Ok perfect