Minecraft not responding

When i open the launcher and and launch minecraft above version 1.5.2 it crashes this started to happen 6 months ago
the output:
07:20:30 launcher Preparing to launch minecraft client for 18w08b
07:20:30 launcher Checking installations.
07:20:30 launcher Minecraft client 18w08b is ready to start.
07:20:30 launcher Starting!
07:20:30 launcher Using default game log configuration client-1.12.xml (outputs XML)
07:20:32 bya Setting user: Hologramic_Boy
07:20:34 byd Skipping bad option: lastServer:
07:20:34 bya LWJGL Version: 3.1.2 build 29
07:20:35 ua Reloading ResourceManager: Default
07:20:36 cxn Starting up SoundSystem...
07:20:36 cxn Initializing No Sound
07:20:36 cxn (Silent Mode)
09:20:36 game AL lib: (EE) SetChannelMap: Failed to match front-center channel (2) in channel map
<log4j:Event logger="cxn" timestamp="1519536036617" level="INFO" thread="Thread-2">
<log4j:Message><![CDATA[OpenAL initialized.]]></log4j:Message>
</log4j:Event>
09:20:36 monitor expected <
07:20:36 cxn Sound engine started
07:20:39 cum Created: 1024x512 textures-atlas
07:20:41 com.mojang.text2speech.NarratorWindows Narrator library for x64 successfully loaded
07:20:41 net.minecraft.realms.RealmsBridge Realms module missing