For anyone looking to get started I highly recommend the StrongLifts program and the associated app, both free [1].
I neglected strength training for a long time because every time I tried to get started I would feel overwhelmed. Then I tried StrongLifts and loved the fact that it's just 5 exercises, but provides pretty much a full body strength workout.
The guy who developed the program has put a ton of effort into making sure it's detailed and accessible so that pretty much any question you could have is answered.