I have found over the years that these two Sacraments consistently feed me: Confession reconciles me to God and heals me of my sin and brokenness, and the Eucharist feeds me each day and helps sustain me on my Christian life journey. It feeds the empty pockets of my being with Christ.
The Sacraments are one of the most marvelous gifts about being a Catholic from my perspective. The Sacraments of the Church are meant to be received regularly so that we can continue to receive God's grace in our lives. We need to be fed by these Sacraments to live liturgically and grow in holiness. Don't shy away from them.
There's true mystery in the Sacraments that you can only know if you experience their gifts time and time again, and when we receive them, it makes the liturgy so much more special and alive in our lives.
For example, right after I receive Confession, the Mass feels that much more meaningful and beautiful because I have rid my heart of the impurities that kept me from receiving all the gifts of the Mass in the way they were meant to be received. Similarly, if I miss a day and don't receive the Eucharist, I find that it fills me that much more with Christ the next time I do receive it. I notice the difference in my heart, words, and actions.
So make use of the Sacraments. God has given them to us. They are gifts to sustain and help us live liturgically so that we may become the holiest and closest to Him that we can possibly be.