Ina, probate is the legal process that takes place in order to see that the property, etc., of a deceased person is distributed pursuant to a will or, in the absence of that, in accordance with the laws about who gets what if you die without a will.
Not every estate has to be probated, and if it doesn't have to go through probate, it saves a lot of money. There are many ways, particularly if the estate is not extensive, that matters can be settled without formal probate, and this saves a lot of money.
I am the Houston area there is a senior citizens' law office, where you can get free or drastically discounted legal advice about the best and simplest way to handle your estate and whether or not you even need a will. Look up on the internet and see if you can find them and call them and make an appointment to go see them and they will take very good care of you and answer any questions, and give you guidance on how matters can best be handled.
Here, I've arranged my affairs so no probate is necessary. Texas law is different, but I'm sure you can find a way there, too.
Do check into it -- the senior citizens' law offices are the best bet for seniors because they deal with this stuff all the time and will give you very good guidance.