I would like advise on the best option for a 12 month visa please.

I have a 2 year old and and unsure of the best option is to get a education visa for him or for myself (although ive been advised he doesn't actually need a visa until 15)

I'm just unsure with all the agents and stuff people keep giving me diferent advise.

How much is a 12 month visa?

What are the requirements/ process.

Can I trust agents im scared of a fake visa obviously being a single mother I don't want to see the wrong side of the law here