It's likely going to be a bad idea to attempt to do your plumbing yourself as many of the tasks require specialist knowledge in order to complete them correctly. Even simple, menial tasks such as bleeding your radiators has the potential to go wrong if you don't know what you're doing.
I understand why it's tempting to do your own plumbing. I recently renovated my bathroom and looked into it myself in an attempt to save money. Before you make any decisions, it's worth asking yourself a few important questions. What kind of plumbing jobs will you be doing? Do you have the knowledge required to do them correctly? Have you thought about how it might cost you more money in the long run to repair any damages you cause? Have you thought about how it could be very unsafe and endanger the residents of your home - particularly if you're going to be interacting your boiler?
There may also be legal requirements depending on your country of residence as some countries require anyone working with plumbing to be licensed and trained.
In the end, I figured that the risks outweighed the benefits and called in a professional plumber. I don't know the prices where you live, but I decided that plumbers in Tunbridge Wells
really weren't expensive enough to warrant taking these kinds of risks.