Necessary? No. Not much except eating, drinking and breathing is. Even reproduction is optional from the view of a single individual.

A good idea? Absolutely:

1. Exploring space tells us a lot about earth. We currently assume that the moon formed when something big collided with earth and threw lots of material into a stable orbit. This means moon is probably made of the same materials as earth and because there is no erosion nor tectonic activity on the moon, it lets us study what earth may have looked like billions of years ago.
2. Lots and lots of things that were originally developed for space are very useful on earth: teflon coating, memory foam matresses, efficient solar panels and many more. Sure, they could have been developed without space exploration but the pressure to get something exactly right helped a lot. And of course we directly use satellites for a lot of earth stuff, too. Think tv, weather prediction, monitoring of climate change, communication, GPS, accurate maps and many more.
3. It gives humanity something to unite behind. Even during the cold war, the USA and the Soviet Union ignored their feud for a bit to make Apollo-Soyuz happen. These days, the ISS is one of the biggest multinational projects and I dread the day it gets decommissioned because Russia will have one less reason to talk to the rest of the world.

Not me but someone close to me:

• There is a difference between “ready for therapy” and “ready for change”. Some people will sit in therapy for years but never see much progress because they are so stuck in doing or thinking something that holds them back.
• Your therapist will tell you things that don’t make sense to you. Listen to them anyway. If they tell you something that seems impossible, don’t ignore it, ask how you can do that. If they tell you something that seems useless, try it anyway, then report back if it doesn’t work and be open for an explanation for why it didn’t work.
• Be brutally honest. Your therapist won’t be able to help you unless you tell them exactly how bad your situation is. If you spend 90% of your day in bed and tell your therapist you’re doing okay, they won’t be able to correctly identify what kind of help you need.
• It is completely normal to miss some of your goals. Therapy takes time and nobody will judge you if you take longer than others. Figuring out how much you should push yourself and when you need a break is hard. Either way, don’t be angry at yourself when something doesn’t work out. As long as you tried, you’re fine.
• Most of your problems are in your head. That doesn’t mean they aren’t real. It doesn’t mean they don’t hurt. It doesn’t mean they aren’t difficult to overcome. It just means that the only person who can solve them is you. A therapist can explain how to solve them but they can’t change your thoughts or your habits.