Luminex_

I just got Forge 1.12.2 and I want to load it up. Whenever I press “play” the launcher disappears but the game does not load. I have a problem something like this when loading up normal Minecraft. Every time I load up normal Minecraft, it starts “not responding” after a few seconds of being opened. I fixed this by closing the two Minecraft launchers from my task manager every time I start Minecraft. I tried this with Forge, and when I close the Minecraft launchers, the Forge loading screen shows up and loads for a second or two, but then closes at what seems 377 mb every time. What do I do to fix this?