Wing it in an English green house

We are now live.. I repeat live!!! In blighty we are now experiencing a heat wave so she is feeding like a mother fucker!!!! She has started to touch the top of the green house so as all good engineers I'll tie the top to the side and try not to break her.. the bottom branches have got short man syndrome and have started to try and out grow the main cola. Hoping to be done in the next 2 weeks so will start flushing in the next couple of days. Might need a bit of guidance from this point onwards friends???