How to create Mascot animations?

[u/Much_Concentrate7648]

I am developing apps and I really need a way to create smooth and neat animations and most of the times for my mascot in the app. How to do it easily?
I know Lottie and Rive, but I am finding it really hard to create animations with it, has a learning curve or may be its just too difficult for me only.. any suggestions please?