It’s absolutely imperative that you put the effort in every single day. The problem I find even with myself is that I get so comfortable in a language that I think “oh, okay! If I just kind of leave it, I will stay at that level forever”. Well, my French and my Hungarian have really deteriorated because I got to a decent level and I thought I would stay there. By not practising a language and not using it, what happens is you reach a point where you can understand it fluently, and that tricks you. You think “okay, I’m still fluent in the language”. But when you need to try and speak… it gets very, very difficult. So, just make sure to, whenever you have time, put in the effort. What can help is to try and change up your language learning methods. Maybe get a new app, get a different tutor, try to explore some language meetups in your area… Just try and change up how you generally learn languages and that should make it more fun, and hopefully get you faster from intermediate to advanced.