Your poem beautifully expresses the anguish of loss, the longing for the past, the sense of being lost and unsure of the future. Broken mirrors, shattered glass, and memories stuck in an oyster all evoke brokenness and longing. The poem gains depth from the use of opposing emotions, such as sweetness turning sour and the soothing smell of smoke.
Do you remember? and "What is my future? Where is my past?," for example, are repeated questions that imply a need for clarification. The overall theme of uncertainty and the passage of time is furthered by the use of time as a motif, with clocks ticking forward and memories obscured by fog.
Your poem's language and imagery are moving and poignant, perfectly capturing the nuanced feelings of loss and longing. But it's crucial to keep in mind that there is a chance for recovery and finding purpose in the here and now.