First, is that in order to go have deeper insights and benefits from your meditation practice, you need to stick to one practice, and practice it every day.
Second, that different people do indeed work better with different techniques. So you do nee to experiment with different techniques until you find what works best for you.
So, in the beginning, it is very helpful to try different techniques. Perhaps you can focus on each one for 2-4 weeks, so you can have an initial "feel" for it. After a while, however, its better if you get one technique and stick to it.
What I did last year was that my morning meditation (1h+) was dedicated to my main technique, and my night meditation (20min) was for experimenting with new techniques. I feel like I got a lot from this approach, and it changed the way I meditate. Now I found a better way, and am done with experimentation for now.
Finally, don't believe the talk that if you do one type of meditation, you cannot try another. That is a cult-like mentality that unfortunately is out there in many circles, especially in those that commercialise meditation.