I’m growing my first super hot (1.2m SHU) this summer. What’s the best way to raise your spice tolerance?

This summer, I'm growing Habs, Burning Bush Habs and the Armageddon F1, which Burpee claims to be 1.2 million SHU. The hottest peppers I've eaten were Habs and Scotch Bonnet. I need to raise my tolerance by the end of the summer so I can enjoy the pepper harvest. Any suggestions?