Why do I never receive blocks when mining?

I work in Vanilla style Minecraft in version 1.8.4 and I am playing a survival style map with cheats ON. I am POSITIVE that I am on game-mode 0 and after switching back from creative to survival; I am unable to receive the block after mining it. I tried ALL types of tools and NONE of them work!
I rebooted and ran Minecraft setup wizard repair on the files. I cant have a virus because I have Norton. My mouse settings are fine and the problem only appears on the one server that I play on. I have a house, a horse named Shadow and a dog named Gandalf that are at stake!
Best Answer
It could possibly be a server issue.
When starting a new server, there is a property in server.properties called spawn-protection. On a standard server, the only users that can modify blocks within this region are ops.
You can make yourself an op by running this command on the server op playername. Alternatively, you can edit the ops.txt file directly and add your username to the list.
Refer to this previous Question
Pictures about "Why do I never receive blocks when mining?"



Do you mine blocks faster further away?
It actually has nothing to do with how far away you are from the block. In fact, it seems to have something to do with a bug in Minecraft which has been fixed known as "click mining". When you mine a row of blocks the "normal" way, standing directly in front of them and holding forward, the system works properly.What is the fastest way to mine blocks in Minecraft?
According to Mills, it would take around 11 days, 18 hours, 11 minutes, and 8 seconds for someone to mine every single Minecraft block. And bear in mind, that is someone who is doing nothing but mining those blocks for nearly 12 days straight.How long would it take to mine every block in Minecraft?
1) Obsidian Obsidian is one of the strongest blocks in the game, coming second only to the bedrock and end frame blocks which can't be mined. Obsidian takes a lot of time to mine, even with a netherite or diamond pickaxe. This is the strongest block players can use to build anything.Mining Difficulty - Simply Explained
Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.
Images: Pixabay, Karolina Grabowska, Sergey Meshkov, Cup of Couple