Your key was pretty close except for segments 5 and 6. If you stay twice and vacuum, you will vacuum one turn too early and fail, so you will have to vacuum twice to make up for the early vacuum or correct it with the key I put below. The rhythm of the steps repeats.
Key: #= number of times to stay
V= vacuum
F= fill the rest of the bar
2VF
2VF
1V2VF
1V2VF
1V3V2VF
1V3V2VF
3V3
3V3