Over the last 8 to 12 months I have replaced the TIPM to clear a check engine light that couldn't be resolved any other way and installed a new battery. The car is great for awhile then intermittently it won't start (this also was a problem before the TIPM and battery, but it has progressively got worse since and I got it going once with a jump but it has been in my driveway turning over and not starting since. I began to wonder if it was the alternator since the battery is new so I put a trickle charger on it yesterday - this morning it said it was charged but the same thing continues to happen. It turns over but it will not start

I have seen the "bypass" videos for the fuel relays on YouTube - have not tried this yet
Intend to check/replace plugs this week

Does anyone have any other ideas that worked for them if experiencing something similar, thank you.