Едем в Disney World впервые за 10 лет: как забронировать билеты в парки?

I need help!

My family an I will be traveling to Disney world in the next few weeks, we will drive over there, I will book the hotel through hotels.com, but I don’t know how to reserve the tickets for the parks, should I do it online directly through their website?

The last time I went there was about 10 yrs ago and I got a complete package at a travel agency, so I feel lost, I would really appreciate your help.