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As far as I remember this level was indeed a bit hard and I needed 2 boosters to complete it and the golden hat. Concerning the boosters it's now quite easy to get some with the wake up tree. For the golden hat it's totally radom, sometimes the 3rd one doesn't appear in many level so you fall back to the 1st one once the bar of the 2nd is empty, it's annoying but there is no other solution as trying again ...
However for the golden hat one thing I did was doing again an old very easy level when I had the 2nd hat to be sure to get the golden one if it's in the level because sometimes difficult levels are so hard than you can't get the golden hat even if it's present in the level.