I tend to use the Edit menu for text edits, but you can use the numeric edit button too (second image).

You can get your toolbars back by going to the View menu and picking Toolbars... which is right at the bottom of the dropdown menu. That will bring this dialog up. You can see which of the options I have checked. My setup is only different to the default one because I have done away with the Color bar. You can get to the palette by clicking the little colour swatch in the top row, and I was keen on keeping as much of the screen for the map as I could. Each time you click one of the checkboxes the position arrow changes, so make sure you have them all with the correct arrow, or your toolbars will end up in odd places. That's a bit confusing for a new mapper.

Sorry! I give you a thumbs up for thanking Remy, but when I reconsidered I realised it might have looked like I was agreeing that your work was rubbish. It's NOT rubbish. So I took back my thumbs up.

You know what - I didn't see it as a single image at all, but two copies of the same thing. I think I must be tired.

I like where you are going with this :)

If you want to get rid of the green glow on the industrial grey move the sheet with the river above it in the list (which will place it, and its sheet effects, below the grey area in the map). You may have to juggle the sheets around a bit, but if you can't get them in the right order for things to show the way you want them to you might have to add a couple of new ones and move things from sheet to sheet to make it so.

There are several ways of doing the mountain. It depends how important it is to the map and how much time you want to take in creating it.

The quick and easy way is to use one or more sheets with a large and slightly smoothed "Bevel, Lighted" sheet effect, followed by an Edge Fade Inner sheet effect, and possibly a Blend Mode to blend the feet of the mountain into the flat ground. On that sheet you draw the extent of your mountain. I recommend using one of the transparent Solid fills, or a solid fill with transparency added in the Blend Mode.

The more detailed way that takes a lot longer is to actually draw the thing with lines and patches of shading on the darker side.

I will let you chose before I gallop off down a detailed description of either, or maybe someone else has an even better idea. There are always many ways of doing a thing in CC3.