It is good that you are genuine and sincere and questioning what you are doing. The world needs more people like that. You are in the position you are in for a reason, and will probably learn from each thing you teach someone.
If you are not comfortable with certain “recommendations”, then pass on those. In the areas you are stronger, you are obliged to pass on what you know, as long as you feel sure of what you are saying.
I will tell you what works for me in my efforts. The most religious people I know have had the most influence on me because they happen to not make me feel bad at all.
With a smile on their faces, they tell me, not from their own words, but they share, B’H, the source of the information they wish to teach me, and then let it sit with me.
They may say, “So and so says……..”, or “When we make a bracha………etc…the reason we do it that way is…….” etc..etc.
Have I absorbed and put to practice everything? No. Have a put more to practice this year than last year? Yes, B’H.
I would say if you have an opportunity to share a halacha with some hashkofa that you feel good about sharing, please do so.
In conclusion, I will tell you what the first Rebbe I learned with told me (He was the one who got me to see what Judaism is really all about). He said, “When a Jewish neshama hears the truth; the real story, whether it sits well with them or not, they will, to some degree, bond with it and think about it, and eventually grow in time.”