Thermostat Help...Not sure its working like it should be

I tried researching and searching through previous post to try and find a solution but to no avail. I had a hard time setting up the unit initially but after working through I was able to get the unit to power up. The old unit in the house was hooked up like this:

Right now in Florida we are in the weird time when its colder than normal so we are using the heat for the 10 days a year we need it. My issue it that the heat isn’t kicking on like it should be. I can hear the fan blow but the heat isn’t coming out like it did on the old unit. In my previous unit the Blue wire was not hooked up but going through the set it, it would now power up the unit without it. It also told me to disconnect the Green wire from G. I’m not sure how far I am from being where I need to be but any help would be tremendously appreciate. Thank you for your time.

-TT

I went to the handler and tried to find a control board but could see one from researching others