ANSWER:
No.
It’s natural to lax a little bit after Ramadan, this doesn’t mean your fasting is not accepted. It’s in Allah’s hands and you must have the best hope in Allah as Allah is how His servant thinks of Him.
Continue reading the Quran even if little and increase it slowly instead of abandoning it completely and pray at least two rakats of night prayers immediately after isha and maintain that as Allah loves continuous worship even if it’s little.