I had too many appliances running on one circuit and it tripped.?

You need a qualified professional electrician to locate and repair the open neutral in the circuit.
The indicator here is that the breaker on another circuit also tripped and you have only half power. The repair is simple but it must be located and that takes time and patience.
Neither breaker is bad but the missing neutral is a VERY dangerous situation that must be located and repaired.
I repeat get a qualified professional electrician to do the work. The location is usually in one of the receptacles in the circuit. Many times it is a loose connection in the device and must be located by a physical inspection not visual.

Hillary Clinton short circuits as well.

Whats missing is someone qualified to service electrical systems. The ONLY way it is possible to have 'half power' is if you have a US style 240 V circuit, which is actually 2 120 V circuits that are 180° out of phase. In that case, they should be wired to a double breaker that trips both circuits at once. If properly wired, it is physically impossible to change the breaker on one leg without changing the other.

I can't diagnose whatever your problem is without being in your home, and anyone that thinks they can is making unfounded assumptions.

Bad news....What's missing is an electrician to install another breaker......I just had the same problem about 4 weeks back!! We live in an older condo where the original wiring has never been up-dated, hence that problem.....I'm going to call a friend who has installed some lighting for me and ask (GULP)...how much?

It is very possible you have a current limiting device on you power board that has tripped. This also needs to be reset to the on position.

Circuit breakers do not normally need to be replaced when tripped just reset as they are designed to trip when you have excess current along the line. If two circuit breakers have tripped your situation is something more serious than just having too many appliances connected at once, as you have tripped two different circuits to trip two breakers.

Try to unplug every appliance in the house that you can, TV, fridge, Computers, etc, then try to reset the breakers and CLD then try plugging in different appliances. Your lights are on a different circuit, if your lights are not working either you may have blown the main circuit breaker/fuse. If you are unable to restore power by resetting the breakers and CLD you will need a qualified electrician to assess your problems.

When you plug too many things in, the circuit will drop voltage and get very hot. If you have a 15 amp breaker , do not exceed 1200 watts. A toaster is 1100 watts so is a microwave and a coffee pot. So add up the wattage listed on the labels and start separating the items.

your box probably has room for more
easy to install
and a good one is cheap

Fuse.

Replace your breaker with 30 amp breaker most are 15 amp