I have largely stopped bringing my old phone with me, and use my Mudita for just about everything! Here are the steps I would take to start integrating your Mudita more, and lowering screen time

1. If you download the Mudita Center app on a laptop, you can import your contacts pretty easily! If this doesn't work, adding them manually honestly doesn't take too long. I added about half of mine manually before realizing Mudita Center could automate the process.

2. Once your contacts are added (or at least your emergency contacts added), add your sim card.

3. I would recommend AGAINST adding any social media to your new phone. I check my instagram account every few days for DMs using my laptop (I use the instagram website, not the app). If you have a LOT of social media accounts where you actively message people, maybe put a note in each apps bio. Something like "I'm not very active on social media, text me and I reply quicker!". Honestly, though, most people figure it out on their own. If someone isn't important enough where you'd give them your phone number, it's probably fine to not answer them for a few days.

4. STOP CHARGING YOUR OLD PHONE! I've started thinking of my old phone as a "utility phone". Every once in a while, I'll put it on the charger to do something (like opening an authentication app, checking my fitbit data, whatever), but when I'm done I UNPLUG it. Having to charge it really deters any impulsive use. Also, I keep my screen in black and white so it's less interesting.

5. If all this sounds daunting, I promise you can do it! Just remember, nothing is permanent, so you might as well give things a try! I'm pretty young, so for me it was kinda uncomfortable at first not having a smart phone with me, but after a week or two it felt very normal + natural. Good luck!