Forex broker vs Stock exchange broker

hi guys

I have a couple of questions

I trade Forex so I know that with Forex brokers we can trade currency pairs, metals, indices , etc with leverage and we almost have 24 hour access to open new positions or close them.

but there is always a trust issue special when you want to invest a considerable amount of money so I prefer to try stock exchange and unfortunately I don't have enough information.

I know that they offer leverage too.
but do we have a 24 hour access to our positions? or they open and close at a certain time so we may get price gaps?
what items can we trade ? Is there an exchange to offer famous currency pairs and indices or commodities?
do you need to be a citizen of that country to be able to trade or being a resident is enough?
can you name an exchange and describe how you can trade ?

I also read in this forum that if you want to trade with a considerable amount of money you should trade with banks . I dont know if it means trading in stock exchanges or it is different.

I hope somebody familiar with this issue gives me some information.

thanks in advance

Why don't you ask a stock broker?

Why don't you keep quiet when you don't know the answer ?

Because sometimes, the answer given is the right answer, even if it doesn't seem to directly answer some or all of the questions asked.