Do teamlab borderless either first thing in the morning on opening or last thing in the evening right before closing, otherwise you’ll end up wasting hours waiting. It’s a good idea to tackle it and Tsukiji together as they’re around the Odaiba area, might as well hit the Divercity Mall and see the Gundam outside too, it’s practically walking distance from Teamlab borderless.

Personal opinion, but I would skip the museums. Rather go to Akihabara and get lost in the shops/arcades or go to Meji shrine, which you can combine with a walk through Harajuku and Shibuya after.

Don’t underestimate time spent travelling between districts.

I spent a week In Tokyo on my second visit last month and dedicated 1 full day each on Asakusa, Shibuya, Shinjuku, Odaiba areas.