Anxiety about the future is completely normal. Don't give up hope yet though, many of the issues you're worried about will take decades to materialise and safeguards and responses are being made for AI and the climate crisis. For example, the UKs hosting the first AI expo and wants to introduce codes of practice and others want conventions to protect human creativity and jobs. Climate anxiety will definitely exist in our age group as we're more aware of the impacts of climate change but just think of all the actions you, your mates and we can do to help reduce our impact. For example swapping single use products out, electric over petrol cars and such. If this worry is lingering there's help out there to help you manage. Even something like discussion groups or counselling. Hope you feel less worrysome, Winter.