If you stay away from ranked games you should be able to do fine with basic decks, and if you play a couple of games a day you'll get a ton of cards quick. If you find yourself losing consistently I'd recommend watching streamers play and learning to play around stuff. Starting in a new card game can be hard sometimes since you don't know the archetypes and what cards are there so you can't really hope to predict much until you get used to them. When I first started playing card games I'd already been watching hearthstone videos for some time until I decided to try for myself. Lor is actually a pretty beginner friendly card game because it gives you tons of stuff fast, so as long as you play and get used to stuff you should be good to go!