Yes never ever stop praying.....but the more u try to be close to ALLAH , the test will getting tougher when u never loose hope on Allah. you will get the reward, so never ever underestimate the power of Dua,
Allah always has 3 replies to our sincere prayers:
1. Yes
2. Yes, but not now.
3. Yes but I have a better plan for you.
There’s never a No to sincere prayers!
As the Prophet Muhammad (pbuh) said, "Call on Allah feeling certain about His response. But know that Allah does not respond to the prayer of a negligent and playful heart." (Sunan at-Tirmithee)