Taking a step back?

I'm a 19 year old guy, turning 20 in four days. I finished college last year (spent three years there) and achieved a B in Business, and a C in both history and photography. I also got a distinction * in Btec Business, but that was not the whole certificate. I'm thinking of starting an electrician apprenticeship this September. My main worry I've got is that I think I will be taking a step back from where I already am. Most people start trade apprenticeships at the age of 16 and would normally complete them by the time that I would be starting it. As well as this most people who undertake these apprenticeships don't have a lot of GCSE's, let alone any A-levels. Saying this, I know that many people in the construction trade are great are what they do, so i' not trying to undermine them in anyway. My two other options I am thinking of are university, and becoming an engineer in the Navy. Only problem is that I am not sure what I want to study at University, and whilst the Navy does have it's benefits, there are also huge flaws to it.
Sorry the text is a bit all over the place, just very confused on what to do and have so many points to get across.
Any advice or points from people would be appreciated big time.

since you're thinking about going the navy as an engineer. is that an area that you're particularly interested in?

Thanks for the quick reply, appreciate it. There's three routes of engineering in the Navy, and the most appealing was the Air Engineering Technician. I mean it looks quite interesting to be fair. I think engineering jobs are going to be "The future", so that my main thinking behind taking it up. My cousin is an air engineering technician and my Grandad really wants me to do it, so you could also say they persuading me as well.

Thanks for the quick reply, appreciate it. There's three routes of engineering in the Navy, and the most appealing was the Air Engineering Technician. I mean it looks quite interesting to be fair. I think engineering jobs are going to be "The future", so that my main thinking behind taking it up. My cousin is an air engineering technician and my Grandad really wants me to do it, so you could also say they persuading me as well.

What about the Navy is putting you off?

It seems like you have put great thought into joining the Navy and it does provide a good path for you. You are bright and have good grades, which will stand you in good stead.

What is making you consider an apprenticeship for becoming an electrician?

Have you talked to your family about what steps you should take next?

i don't know if deep down I would fear the sudden change of the comfort of home life to then living in a ship. Saying that I'm not overly happy with my home life, but I still have doubts about navy life. Also I've never been a huge fan of the armed forces in general. I think the biggest thing that's putting me off is how long term it is and I also associate the disciplined nature as not being able to have fun. That was a hard question to answer, struggling to think of strings reasons why I'm put off...