Yes it is quite easy, but its also something that unless done with extreme caution, is terribly dangerous.
One mess up and BOOM.
This is something you don't get two chances with if you make a mistake.
Yes but as long as you do it outside and be safe about it the risk is actually not very much.
Obviously no flames it smoking but that's just a given.
Even you had to do it a first time. I'm sure, just like I did, you did the research and made sure you were being safe about it. Or you were with someone who knew what they were doing, either way.
All I'm saying is as long as you watch the videos and do the reading and get the right materials to do it, it can be really fun and rewarding to make it yourself. It's just one more thing to say i can do