@Vanellope, Custom tracks....as in layouts? Yes. Create a new coaster type? No.

@Amy, you're welcome. It really is quite amazing, if ya ask me!

I would like to try making something in RCT2 but not sure how to play without a budget or if you can. When I go to Edit Scenario it's a little confusing for me.

When you get to Options Selection, which is one of the last steps in the Scenario Editor, you will see a box that says No Money. Check that box and the scenario will be free of financial restrictions.

And if you make a video of it while you are recording how do you do it? When I use bandicam it always comes out small.

I've always used Hypercam. The footage may appear "smaller" outside of the game, but this only tends to happen when RCT2 is running using a lower resolution than your monitor. The program corrects this mistake, and the clips depict the game as it should look "normally" rather than stretching to fit the screen the way RCT2 often does. A RCT2 screenshot does exactly this.

I looked at the OpenRCT2 and didn't quiet understand it. So for now, I'm gonna just stick with what I have with the game until I get more familiar with it.

This is what I consider the best approach. OpenRCT2 is a great tool for more experienced players who are used to the mechanics of the game, but would likely be overwhelming for someone who is just starting out. Scenery takes about 10x as long to build without clearance checks.
Once you develop more intricate scenery techniques, the tile inspector turns the game on its side.

I downloaded openrct2 I just haven't installed it yet

It takes almost an entire minute.

Does it allow you to make custom tracks?

As Blazing mentioned, you can create custom layouts. Over 800 RCT2 tracks have been shared by users and put up for download on RCTgo so far:

https://rctgo.com/downloads/tracks/rct2/...loads/desc

You can make CTRs, but it would require the use of an outside program; there is no feature within RCT2 that allows users to design trains from scratch.

I personally found OpenRCT2 back in 2015, and started using that without having any experience with making things in RCT2. I was the kind of kid who just played it to plop down flat rides and pre-built layouts and call it a day. Till then I was an absolute 'noob' in RCT2 (not to be confused with newb or newbie), so I didn't install it for its advanced park-making tools at all. (I don't think it even had most of the advanced tools back then, that people download OpenRCT2 for nowadays. We're talking ver. 0.0.2 here.) I installed it more-so because it allows you to play the game at your desired resolution, something that annoyed me to no end before, as well as ensuring the game will definitely work on your system. I can't explain how much of a nightmare it used to be to run the game on my Windows machine before. Now I can run it even on my Mac natively and I don't have to configure anything to do that. Works out of the box.

So, think of the advanced tools as an added bonus. At least I do, even now. Some of the veterans here could disagree the above are valid reasons to get OpenRCT2, but at least that's my hassle-free experience with OpenRCT2 so far.

Though I will say the 'Disable Clearance Checks' cheat, the Tile Inspector tool as well as the Eye-Dropper tool make the building process unbelievably easy. They're the kind of features you didn't know you wanted until you tried them.

I hope this helps you make a decision.

[P.S. - There is also a Multiplayer component to the game that makes it worth getting, at least for some, so I'd consider that too. Though I can't guarantee that'll make you a better builder, that is primarily how I have grown. You find similar skilled people and learn around them.]