Still struggling

I've been researching and preparing to make a switch over to a Chromebook for many months as I've really liked the last 2 Google phones that I've had. I was aware that it was a completely different way of doing things and had tried models in various high street stores. Despite all this, after a week I'm still struggling with the changeover and must give it time. The machine is really good and I'm happy with all elements of performance so far. It's just me...... I like a lot of the simplicity of it but the provision for online Excel has been disappointing and this has been my main issue. I'm preserving with Sheets, but will need to work on it.