After jumping my car it started but as soon as the cables disconnected everything turned off, dashboard lights, dome lights etc.

My car seems to have a never ending list of problems. Started in January-replaced the battery, March-replaced the starter, August-replaced the alternator. It’s had an oil leak but never could tell where it was coming from. But I’ve religiously checked/added oil. Car quit running on October 11, lights on the inside of the car worked but just one click when I tried to start it (it’s a push start) tested the battery numerous times. Took it to AutoZone, they said it’s a perfectly functioning battery. Pulled codes, one of which was the throttle bottle, replaced that Oct 12. Other codes were P06DD- Dual Stage Oil Pump Stuck Low, P0340- Camshaft position sensor bank 1 sensor 1, P0335- Crankshaft Position Sensor “A” Circuit Malfunction, P0345- Camshaft Position Sensor A Circuit Malfunction (Bank 2), P0365- Camshaft Position Sensor B Circuit (Bank 1), P0390- camshaft position sensor circuit of bank 2. Had a mechanic come look at it, said the starter needed to be replaced due to the oil leak and the oil cooler needed to be replaced and that’s where the oil leak is coming from. Replaced the starter yesterday, October 19. After jumping my car it started but as soon as the cables disconnected everything turned off, dashboard lights, dome lights. I don’t know where to go from here. what needs to be checked or replaced next? Any advice/input is greatly appreciated.