Of course you can be happy. It is not easy, neither for the family, but they are learning by leaps and bounds in how to live in this new reality that brings many challenges but also a lot of happiness.
What there is to do... never give up, love your family and learn to be happy with them, they give many reasons for this.
And for them to be happy, to support them in everything, to give them challenges but also facilities, to understand them.