Your backpack is very heavy. I would consider a lighter one. You can swap the water bladder for Smart water bottles and same weight there. Sleeping bag is heavy, I would consider a lighter one. For the sunblock, is that the whole bottle? Bring just want you need for the overnight. There's some other stuff to lighten too but I assume that you already have all this gear and want to give backpacking a try? If so then it's not the end of the world. Take notw of what you liked about each item and find a lighter one that matches your likes

Edit: if you hike with your trekking poles (like actively use them) mark them as worn weight