Building muscle after years on sedatives

How many of us are ever at our ideal weight. Today, I am at about 60kg = 132pounds = 9 stone and 2 pounds. From the graph you’ll see that sedating prescription drugs caused me to gain weight. The drugs also made it difficult for me to exercise, so gradually coming off the drugs 2010/2011 left me short of muscle. Better diet and more exercise has allowed me to get back to about my optimum weight. Yet, still I am wanting to put on that extra 1kg. I’d like to be 61kg, yet am I prepared to lift-weights everyday to add that extra bit of muscle?

(After moving house I’d like to find my diaries for 2016 and 2017 to fill in the missing data.)