u/Comfortable-Log6511

Hi, I’m new to investing. I’m 21 and realized I have enough money saved to start investing some of my income. I just set up my Fidelity Roth IRA to automatically invest $40 every week into FXAIX (the Fidelity S&P 500 Index Fund). I chose automatic investing because I don’t wanna be tempted to dwell on the short term results which could happen if I manually did the deposits.

I have two questions:
Does this seem like a good long term investing choice for someone my age?

and second, as for the deposits being automatic, is it fine if I just never open the app until a few years go by? Or is it better to still monitor things