Have a slow gearing of your robot. I was a very aggressive driver last year and so this year came as a big change. I think the greatest thing I learned is "Drive slower to go faster." I tried going as fast as I can and i would dump stacks or make stupid mistakes. Practice, Practice, Practice! We had the opportunity to go to three district events this year and then district championships. As i got more practice things got much easier. The first two events I was 50-75% on our stacks. In the third It went well other than dropping two stacks of 6 in the same match
In PNW championship we were 100% dropping no stacks. (This is excluding the match where a few zip ties were cut and our tower fell not letting us be able to stack)
I would also say to develop a routine. If you watch our playoff matches I did almost the same exact movements every match. This helps me to keep my nerves down and know the speed I have to go and have confidence that i do not have to rush. Since this years game is generally the same thing every match for a team, building a routine of the movements that you make can help with finesse a lot!