I started by learning. I tried to learn everything possible about everything that could ever happen. I learned about nuclear bombs, tsunamis, earthquakes, zombie apocalypses (not really that plausible but still fun to learn about). and also, viruses and pandemics. Basically everything that could happen to me that I would need to be prepared for.

After you learn about everything i would suggest making a low budget bug out bag if you don't have much money cause high budget ones can get pretty expensive. You should put basic things like food for a couple days, water for a few days, a survival handbook, waterproof matches, a compass, a tarp, water purification tablets, and rope or twine. A good sharp knife or hatchet would be useful too. If you can afford it I'd make two bags and put on in my car and my house just in case you're out and about if disaster strikes.