Please help I’m Stuck It’s been 5 months

Seems like you have a number of things going on here that you have lumped all together and along with some inaccurate wording has confused everyone; so lets try and correct this.

As I am reading your comments, it seems like you have several things going on here;

1. your starting system (meaning the devices that make the starter initiate). It sound like you have both a ignition switch (the thing you put the key into) and some type of push button. This would indicate that either the ignition switch was/is defective and someone didn't want to replace it or someone added a push button switch for some other reason. The way you fix this is first you need to figure out how it is wired, then repair that back to stock so that the ignition switch works as designed. You will need to get under the dash and look at the wiring and see what has been cut and rerouted. You need to get a wiring diagram and make sure all of the wires are going to the right place, you also need a good ignition switch. Understand that the ignition switch itself does not include a key, the key cylinder goes into the switch and activates it.

2. your engine actually running. At first you said it only ran when you fed it starting fluid then you said it "stays running as long as you leave it on".. are you saying that once it starts it stays running OR are you saying it runs as long as you are cranking it with the starter?

Look, you need to go at this in a methodical organized manner; one thing at a time. If you post some pictures of your switch/buttons etc. members here might be able to provide a little more accurate guidance. Whatever you do, if you start messing with the ignition switch and/or button DISCONNECT THE BATTERY first...