Watch videos that will help you to customize and manipulate strategies that you want to apply in your preferable trading bot. This is not enough, try to llook for some stuffs that will guide you, here is a website that I'll share to you https://www.youtube.com/watch?v=biSv6994rpY Try to watch and practice making it.
If you're already experienced and interested in programming then this is the best option for you. In college, we already used this Python Scripts and taught us the basic and fundamentals of using it. We apply it in Engineering courses and I'm pretty sure that it is very applicable to any thing that is programmable like trading bots.