People think that curry is always spicy, while it is spiced, you can moderate the spice and just make it highly flavorful, rather than blow your head off hot … but if that is what you like go ahead. You are cooking for you.
There are as many curries as there are cooks who cook it, you can buy curry powder or pastes which are a blend of spices, or mix your own to your liking, I usually do a combination of curry powder and punch it up a bit to my liking. The ingredients of curry powder is just a variety of familiar spices.
I have always cooked, I was that person who could make a meal from an empty fridge. I have lived alone and with large and small families, I have cooked for camps on wood stoves, and in professional kitchens. I have lived and worked all over the west from Montana, to Seattle to Arizona to San Diego. I have traveled, maybe not 'all over the world', yet, and have collected tastes recipes and techniques everywhere, and every one I meet.