C# or PYTHON for making a revit plugin? Or a direct software/ way to make a plugin?

Man i have been trying to install dynamo 1.3 for days now :persevere:
1st problem- on dynamobim.org/download , DYNAMO REVIT asks to click a link DYNAMO BUILDS and find the revit versions fo4 2017-2018. But the link shows a list of 3 types of dynamo versions “coreruntime2.0” “dynamoinstall2.0.exe” “dynamorevit2.0.exe” which file do i need here?

2nd problem- when i use Dynamoinstall2.0.exe or dynamorevit2.0.exe, the dynamo in manage tab of revit doesn’t have any nodes on the left side. And its just frustrating. I found similar problems with other users on this forum but i swear nothing helped :persevere:

I so exhausted, i just need data-shapes and its teasing me so much. Please help.