..., but switching from sketchup to Blender is very hard for me.
Blender's not really heavy. But as you write, switching from Sketchup to Blender is very difficult. (Sio should be able to sing a song about that, too.)
I feel the same way with the graphics program. My old program only works up to Windows XP. And every other program feels like I'm trying to operate it with my left foot. (That's also a reason why I practically don't do anything anymore.)
From the beginning, I have only worked with Blender, and recommended it to everyone. (Only nobody listened to me.)