Calling all mums with oversupply!

Diana
My LO is 10 weeks. We block feed. 6 hours each Breast. His feeds aw very short about 7-10 minutes. Is this what you experience as well? Will I have to block feed forever? 
This has been the biggest struggle I've ever experienced. We are finally getting to the point where baby isn't choking and is getting hind milk. 
Any tips from mummy's in the same position are welcome.