Ask this question first.
First step is to really look at what your motivation is. If you are prepared to study for ages all through your career, accept responsibility for your own actions, work under pressure and enter an industry with more rules and regulations than almost any other, then you are probably going to do just fine.
Second step is to determine if you are smart and capable enough. It sounds hard and is probably politically incorrect to say it, but if you are not endowed with the right faculties you will struggle to achieve the required standard. You need mental agility and capacity. You need physical strength and dexterity. Without sufficient of either of them you are going to struggle. There are physical barriers to doing this type of work, you usually need all 5 fingers on each hand, nuts and bolts need manipulating, often in a small space and that can be a struggle. You need to be able to crawl around underneath and inside an aeroplane. You need to be able to see colours in dim light and hear sometimes quite quiet sounds, without those capacities, guess what, you are going to struggle.
An employer looks for people that can do all the job for him. If he has to do something for you, to get the job done, he probably has other things to do that are more important to him.
Third step is to look around and find someone who has been in the industry for a long time and ask them what they think about it. Ask them how much they are getting paid and if they would ever change. All the good ones say enough and no.
Fourth step. If you’re still interested and think you’d like to try it, we can help you.