First Choose a framework you enjoy working in. I always recommend Rails or Laravel since I enjoy those. Then build a basic web app to scratch an itch you have

First Choose a framework you enjoy working in. I always recommend Rails or Laravel since I enjoy those. Then build a basic web app to scratch an itch you have. ToDo/Planner, Private Social Network for your close friends or family, Budgeting Tool, Tracking something you collect (Albums, Legos, etc), geo location is interesting, QR Codes maybe a scavenger hunt app for you and your friends (setup QR codes around town with clues). Whatever you choose, use it, extend it, update it over time, keep a list of features and improvements you want to do. When you feel like coding pick one and implement it. If you lose interest in your app. Start a new one. If you want learn React, Angular or Vue on top of a Rails/Laravel app. Buy a domain, use Git, Deploy your app to Digital Ocean to build up your skills/knowledge. If you're interested checkout the StartUpsForTheRestOfUs podcast if you have an interest in starting your own thing eventually. Good Luck, have fun keeping your coding skills sharp.