BJJ training schedule

I’ve been doing BJJ around a year now. 42M with decent weight training background and reasonably fit/strong (but definitely not flexible). My schedule has been 2 fundamentals classes (drills and some limited positional sparring), 1 mixed class and 1 private with my instructor. The reason I’ve organised it that way is I’m very concerned about injuries (travel a lot for work and two young kids), so wanted to limit full sparring to just one session with the broader class and one with my instructor. I normally do the two fundamentals classes no gi and the two in sparring in the gi. Any views on this? Or is the bottom line that if I want to make meaningful progress I’m just going to need to expose myself to more injury risk?