In 121 all you do is fly the plane, but you will be doing a lot more of that typically.

If you pick the right airline and the right base, you could eventually minimize or eliminate overnights, but that's probably a long way off as local trips tend to go senior.

There are about 10,000 RJ captains with similar numbers to you, and all of it in 121. Many of whom have had apps out for about a decade. You're going to have to beat the pavement pretty hard to get an interview right now, sitting back and waiting probably won't get you called short-term. Do you have multiple LOR's from airline people at your target airlines? But if you're not in a hurry, you don't need to be as pro-active, you'll probably still get called eventually as the pilot shortage drags on.

Be prepared when call, get some interview prep.