serious plant damage, WHAT THE FK!

ok, so i had to improvise for my LST, my plants coming up on 7 weeks, and its got such a thick stem u wouldnt beleive! so i used sewing string (very thin and strong) that ran thru 3 pink erasers (those big pink pearls) i had stopped moving it up the stem once it got to the right node, so i left it there for a lil while, i was trying to bend the top of the stem back a lil to show my friend, and the tension send the string sliding right thru the stem! cut it right off like a guilotine!. so now the bulk of my plant is in tact, but the top like 3 nodes got clipped off :( (but theres still like mad amounts of tops coming up that are mad long and shit) is this gonna be bad!?!? theres a blatantly large hole in the top of my stem going all the way thru! someone tell me what is going to happen!!!!

Well that part is gone.....and don't use string....use garden tape or twist ties or something. The other thing is not to tie ANYTHING tightly to a growing stem.....it will choke or cut it off.

Your plant should be ok......except for the part you cut off.