How do I get my car to start it won't start. Charged the battery. The cars turns over. I know I needed a thermostat but the car wasn't over heating. Will that cause the car not to star

Sounds as though the battery is no good,
unless you know otherwise & also had it tested
Charging a battery doesn't address it's internal
condition
You have battery cables that corrode inside & can be
voltage drop tested
You have the starter & solenoid,ignition sw & such, to name
a few,lots of possible causes & things to check

Perform a compression test on your cylinders. One unfortunate result of overheating is the blown head gasket. Without compression your motor will not run. Tester are not super expensive or some stores will lend tools.

Recently we had to put a new fuse in the starter ???????????? What fuse ? location , size . A fuse blowing means a electrical short to ground .

check fuses ( main fuse engine fuse ignition fuse )

Dead battery armed the security system. Remove the battery cable let the system reset. Charge the battery. Use the key to unlock the door instead of the keyless entry. This resets the alarm once the battery is charged.

Check batry terminals are secure & free from corosion, check security of earth strap to engine & main power wire on starter, if ok have the batry load tested to ensure it can perform under load as the starter needs a lot of current. Have you tried a jump start?

Possibly a bad connection on the positive side coming from the battery or a weak ground. Check where the leads join the terminal clamps. Has the battery been verified as good? It doesn't take a lot of amps to run lights but it does to turn over the engine. Jump starting it does not require a fully charged battery.

Make sure battery terminals are clean & tight.Also make sure polarity is correct & battery is fully charged.Thats a good start

It sounds like you need a new starter. If you hear the starter click when you turn the key to start, replace your starter since you already replaced the battery. You might want to have your alternator checked out, or when you get your car started, test the battery terminals with a multimeter. You should have around 14 volts with the car running. If not, you will need a new alternator. The alternator won't keep the car from starting though, unless the battery was drained because it wasn't charged. Even then it is the battery keeping the car from starting.

If the starter is not clicking, check your fuses under the hood. If all checks out, you may have a bad ignition switch.

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

the battery may be fully charged but that doesn't mean that it doesn't have a weak cell, next time you go to start the engine remove all of the battery filler caps (if it has any) & get someone to look into the holes to see if they can see if any of the cells are bubbling,if any are the battery is faulty & needs to be replaced......hope this helps......cheers.
PS. don't get your eyes to close when looking into the holes of the battery,it might be safer to use a mirror.