AC not the only answer, very expensive compared to other options. Eat & drink a lot of cold food & beverages including iced drinks/ice cream, stay in shade, grow enough vegetation around your house to provide shade to reduce warmth to maximum possible for ambient conditions (also reduces electricity bill) - reduction may be around 2-3 degrees on average. If you can afford it, get solar panels & batteries, as many as you can afford. Use fans until you actually need AC.
Caveat: I like the heat so seldom use AC - coming from Glasgow, I really like the heat. I fully realise that some really dislike excessive heat.