How do I erase layer styles on select areas in PS Elements?

[swiss]

See picture below. The upper left picture is the zoomed out. Other picture is the zoomed in.

I have a glow layer style on my land that looks great for shoreline. The problem is that layer style follows me when I'm cutting into my land for rivers (I experimented with just painting on rivers but I like the inline strategy better). I want to erase the layer style (i.e. the yellow glow) on select areas (i.e. on my inland rivers) but keep it on my ocean shoreline. It doesn't look so bad zoomed in, but when zoomed out the glow is overpowering and it looks like my rivers are yellow and not blue

I googled this and found some advanced option for PS but it's not in PS elements, so solution would likely be something creative.

The only thing I've tried so far is literally painting on a similar color (green) on a layer above the land over the yellow glow, but this looks a little messy, not to mention very time consuming.

Any ideas?