[Roland]

I would raise right away on 3rd. Limp-reraising is okay, but has an obvious downside: you can’t know if it’s going to be raised behind you. You want to exploit your equity edge here, and if they all just call you have failed miserably.
I like the bet on 4th. Since the pot is huge already, you don’t really mind a raise; it MIGHT knock someone out, after all.
I hate the raise on 6th. This doesn’t improve your chances of winning the pot in any way I can see, and I’m pretty sure you don’t have enough equity to raise for value.
I call the river too.