First Timer--- Need help to finalize the tour

Hello suchisaha! It's a challenge indeed to visit that many spots in one week only. You may have to skip a few things, in order to create a doable itinerary. For example: I think you could integrate both a chocolate factory and a visit to St. Moritz, but you'd have to make that choice at the expense of other day trips. There's a chocolate factory in Flawil, called Shoggiland, which can be reached from Zurich and/or Lucerne, so you could plan this on day 1 or 2. During your stay in Interlaken, you may have to skip Glacier3000. It's beautiful, but so are other viewing points and it's a rather long trip. Instead, you could travel onto Chur/St. Moritz after your days in Interlaken. This will be a long trip though, and if you have to continue your traveling immediately the day after, there won't be much time left to explore the towns or its surroundings. From St. Moritz, you can take the spectacular Glacier Express to Zermatt. Again, this will cost you a full day of traveling, and you won't have time to explore Zermatt if you want to get to Geneva the next day.

In all, I'd skip Glacier3000 and St. Moritz if I were you, and concentrate on the Lucerne, Interlaken and Zermatt region only. That's a lot for an 8 day stay already.

Have you discovered the Swiss timetable already? It will give you a good impression of the duration of the trips you've planned. It may be worth to take a look at the rail pass options too, as that will definitely save you money.