Too much water in the toilet bowl

My toilet bowl water level is high. I replaced the flapper (a couple times) and that did nothing. I replaced the fill tube with one that has a constrictor on it, and even when I shut the water off going into the overflow pipe, the water level is still too high. It takes 2 or 3 flushes to take care of everything. What am I missing? This is getting a bit ridiculous. Thanks in advance.

Something must be clogged downstream.
Every toilet is designed with a "s" trap drain internally and will, under normal circumstances, self-siphon out to a stasis normal level, no matter how much water slowly drips into the bowl.

Call a plumber.

I have rodded out the toilet, and it still doesn't flush completely. All other faicets and toilet are fine. Any other suggestions as to what I can check?

The only time the toilet bowl water level will become elevated is as breplum said, a mainline blockage downstream from the toilet, or a venting issue. Rodding a toilet only ensures the p trap in the toilet is working.

You need to get that main line checked. Sure, you can go spent $50 by renting a electric snake, putting it into the back of your car, risk breaking your hand because they are very powerful, hopefully breaking through the stoppage, then haul the crap lined electric snake back into your car and returning it back to the rental facility. Or you can do what I do.

I call a guy who will snake my entire line for $90, I stay clean, my bones remain intact, and he guarantees his work for 30-60 days.

There is likely a log jam of poop and excess TP partially blocking the flow.
They often form where fittings meet, or they catch on mineral or rust build up.
If your snake is only three feet, you can get a six foot snake at most big box stores.
They are awkward to use but have saved me many times, when a big clog, bar of soap, Matchbox car, etc are just out of reach of a three footer.
But yes, the bowl level should still slowly drop as water sneaks past the clog, until it reaches the maximum depth the toilet trap will maintain.
Some almost complete clogs can siphon water even lower than this level, to almost an empty bowl.

PS in the future, you might consider the old double flush technique.
Especially if someone uses a mile of toilet paper, or drops massive turds.
Drop your load, flush, clean up then flush again.
Much less likely to plug up that way.

Normally the bathroom lavatory is tied into the same drain system / line as the toilet .

After you finish flushing , any extra water used washing your hands , will also help push the solids down the line .

Wyr
God bless