A bot is helpful if you know how to manage it as it automates your strategy but it doesn't mean you'll also get automatic profit from it.
For such scenario, you need to be an expert in trading and must have some coding knowledge as well which is the reason why most people are going for third-party bots rather than automating their own strategy. Moreover, we can only automate some part of our trading process and definitely not end-to-end so that we will get autopilot profits.
I have heard mixed responses from traders about making use of others' signal because even high fee demanding signal provider also not hitting bulls eye all the times. So, the accuracy of signals we are buying definitely less than 60% which must be the concern that lead to why we should go for paying them rather than generating our own signal.