So, I'm currently a Junior in High school and I've thought a lot about my future

You've got time so don't stress. You may find that you end up with a different interest or a more solid idea of exactly what you want to do.

I'm mostly interested in Ancient Greek, Roman and Egyptian history

You'd definitely fall under the Ancient History category then. Most colleges and universities separate ancient and post-ancient stuff into separate courses, so be careful of that.

I love history either way but I don't wanna sit in a room for months on end just doing research.

This, combined with the above interest in ancient history, makes me think archaeology is right for you. Archaeology is going to need historical context anyway so you'd end up doing history.

I'm British so I'm not sure how it works elsewhere, but there's many places here that offer a combined Archaeology and Ancient History course that would be right up your alley. The combination of fieldwork and the periods you're interested in would probably make that the ideal for you.

As for careers, that's the eternal worry of the non-STEM student. The truth is that most places won't particularly care what you have your degree in, only that you have one.When it comes to PHds, that's something you'd probably need to think about after you've started your course. You may decide it's not right for you, or you may fall so completely in love with your studies that it becomes a no-brainer.

I am a junior history major in college and even I don't know what I want to do post-grad. Pursuing a history degree is more than just the historical knowledge; if you ever wanted to do something in a non-history field, employers would see your history degree as a way to know you can write well, analyze information/documents, you have good organizational skills, etc. If you want to stick with the history field, it's likely you will need a Master's degree, but not necessarily a PhD (just depends on what you want to do). Research also doesn't just mean sitting inside all day reading; most of the time you're expected to travel to the location of your desired field to research their archives.

Also, do NOT feel like you need to do your undergrad, immediately go into your Masters, and then immediately pursue a PhD. We've been conditioned to think that if we don't achieve certain things within a certain time frame that we're unsuccessful. Go to college, take some classes, find out what you like. I can promise you that you will find your precise niche in terms of Ancient Greek, Rome, and/or Egypt. I have friends with all sorts of specific interests, anywhere from 18th century British religious philosophy to Napoleonic battlefield strategies to gladiators in Ancient Rome. Or, you might even find out about a different subject or career you're passionate about. After your undergrad, take some time off if you want! Use this time to travel, save up some money, do some internships. Same thing with a PhD. There's no timeline for when you need to do anything.

And if you ever feel uncertain about your future in the history field, you can always talk to your professors or academic advisors. They've been through it and they know what you're going through. They can give you advice based on the path they took and that it's ok to not know what you're doing.

There are options available commercially for archaeology, especially if you know how to set yourself up as a contractor. The options available otherwise are best used to compliment existing skills. A high quality history degree for example will offer any texts you author with more credibility. Otherwise you can follow the academic route of employment also, provided you remember to treat fellows as work colleagues.

/u/sunagainstgold takes a very dim view of getting a doctorate in history.

More answers on history as a profession can be found in the FAQ.