My Minecraft is not opening

I havent been able to play minecraft in months and tried reinstalling it several times and i keep getting this error:

Minecraft Crash Report -------- Minecraft Crash Report ----// Hey, that tickles! Hehehe!
Time: 16/11/19 18:21Description: Initializing game
java.lang.OutOfMemoryError: Java heap space at java.util.Arrays.copyOf(Arrays.java:3332) at java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:137) at java.lang.AbstractStringBuilder.ensureCapacityInternal(AbstractStringBuilder.java:121) at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:569) at java.lang.StringBuffer.append(StringBuffer.java:369) at java.io.BufferedReader.readLine(BufferedReader.java:370) at java.io.BufferedReader.readLine(BufferedReader.java:389) at org.apache.commons.io.IOUtils.readLines(IOUtils.java:1294) at org.apache.commons.io.IOUtils.readLines(IOUtils.java:1248) at org.apache.commons.io.IOUtils.readLines(IOUtils.java:1229) at cvo.a(SourceFile:237) at cvo.<init>(SourceFile:210) at cvk.au(SourceFile:441) at cvk.b(SourceFile:395) at net.minecraft.client.main.Main.main(SourceFile:154)

A detailed walkthrough of the error, its code path and all known details is as follows:---------------------------------------------------------------------------------------
– Head --Thread: Client threadStacktrace: at java.util.Arrays.copyOf(Arrays.java:3332) at java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:137) at java.lang.AbstractStringBuilder.ensureCapacityInternal(AbstractStringBuilder.java:121) at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:569) at java.lang.StringBuffer.append(StringBuffer.java:369) at java.io.BufferedReader.readLine(BufferedReader.java:370) at java.io.BufferedReader.readLine(BufferedReader.java:389) at org.apache.commons.io.IOUtils.readLines(IOUtils.java:1294) at org.apache.commons.io.IOUtils.readLines(IOUtils.java:1248) at org.apache.commons.io.IOUtils.readLines(IOUtils.java:1229) at cvo.a(SourceFile:237) at cvo.<init>(SourceFile:210) at cvk.au(SourceFile:441)
– Initialization --Details:Stacktrace: at cvk.b(SourceFile:395) at net.minecraft.client.main.Main.main(SourceFile:154)
– System Details --Details: Minecraft Version: 1.14.2 Operating System: Windows 10 (amd64) version 10.0 Java Version: 1.8.0_51, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 2048121864 bytes (1953 MB) / 3221225472 bytes (3072 MB) up to 3221225472 bytes (3072 MB) JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx3G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M Launched Version: 1.14.2 LWJGL: 3.2.1 build 12 OpenGL: NO CONTEXT GL Caps:  Using VBOs: Yes Is Modded: Probably not. Jar signature remains and client brand is untouched. Type: Client (map_client.txt) Resource Packs: ~_ERROR~ NullPointerException: null Current Language: ~_ERROR~ NullPointerException: null CPU: <unknown>