Reddit mentions of The Kneeling Christian: If ye have faith and doubt not … all things, whatsoever ye shall ask in prayer, believing, ye shall receive.

I think it's important to start by pointing out that it's not often that God will speak to us in a way that is very convenient to us (ie. audible replies to our prayers, visions/dreams, a prophet/messenger/angel explaining they've been sent by God to share something with us, specifically). I'm definitely not saying these things can't happen because they most certainly do; it's not the main way they happen though.

I don't think it's a coincidence the Bible is called the Word of God though. God has revealed literally everything we need to know about Him within Scripture (not to be confused with everything we want to know): He teaches us about His character, His plans and promises, the way we should view ourselves/others/Him, and so much more.

With all that said, the best way to hear from Him is to be actively seeking in prayer and through reading the Bible. I promise you'll find verses that seem to speak to your exact situation. If you've never read a book of the Bible through before, I would suggest starting with the Gospel of John.

If you feel like your prayer life is still suffering, or you just want to go deeper still, I would highly recommend The Kneeling Christian. The original is by an "Unknown Christian," but the one I linked appears to be the same text, and the digital version is free to download. It's a book we've been working through at our church this year, and it's changed the way my wife and I pray and how we look at prayer.

I don't know what your attitude toward prayer has been, but I think the most important thing to remember is that we should not be entering into prayer with the expectations that our prayers will not be answered.

James 1:5-8
>^5 If any of you lacks wisdom, let him ask God, who gives generously to all without reproach, and it will be given him. ^6 But let him ask in faith, with no doubting, for the one who doubts is like a wave of the sea that is driven and tossed by the wind. ^7 For that person must not suppose that he will receive anything from the Lord; ^8 he is a double-minded man, unstable in all his ways.

Psalm 5:3
>In the morning, LORD, you hear my voice; in the morning I lay my requests before you and wait expectantly.

I apologize for my long-windedness, but I hope I've provided both encouragement and insight here. I'll be praying that you receive the response you're looking for from God, that your faith in Him be restored and strengthened.