Help me with a thesis statement!!?

Unfortunately, it would be nearly impossible for us to formulate a thesis statement for you because we have no idea what it is you are going to say. Where are you going with the commentary? What points do you wish to make? I can see something like, "Amichai in his poem (name) attempts to communicate the increasing responsibility that comes with maturity. " or some such blather as that. But again without knowing your direction in the commentary, we cannot formulate a cogent thesis statement. Sorry.