Training help

This is my 7 week blackberry auto i have been training it for 4 weeks now but its just gone wild should i just leave it now to do what it does or can i still try and straighten it up a bit and how long left on her do yous think

If you just leave it then the buds will weigh those branches down until the snap or hit the floor when they put on weight. I would put 4-6 garden stakes (bamboo sticks work) in that pot and use them to support those long branches.