Is there somewhere I can park my car overnight and get a train into London (Stratford)

[LondonNoviceHelpNeeded]

Im going to be travelling to London (Stratford) and considering all my travel options as trying to keep costs down - I dont live near London so unfamiliar with the tube etc and Google is confusing me big time.

Where would be best if travelling from the North, to be able to park my car and the get a bus/tube etc into Stratford? Or is Stratford not that bad for driving in itself in terms of busy traffic? It would be a Saturday so no rush hour traffic, but like I say I'm not sure of the lay of the land. My car is LEZ compliant so I'm ok with that.

Any help much appreciated!

Actually, I know my title says overnight, but I might not actually need overnight, so daytime suggestions welcome as well

Where are you starting from? What road will you come down? M11, M1, A1, something else?

National rail map. Stratford trains generally head east or NE towards Suffolk. But it connects well in other directions too!

Where are you coming from? It might be as easy to park in Stratford. Another option would be Elizabeth line from Brentwood or Romford

It would be the M11

Thanks for the responses so far, I'm looking into them :)

If you're coming down the M11, I really like parking at Woodford.

Parking at Woodford station is an easier drive than getting to the carparks at Stratford.

Woodford is on the central line and goes in past Stratford.

Can you take the train the whole way? It's the best way to get to Stratford tbh. Book early and play around with times and it can be really cheap.
Stratford isn't the best for parking and it will probably be expensive. Westfield is right by the station, and easy to park at but costs £16 for 14- 24 hrs.