any tips for a new French learner?
It always depends on what's your first language. If it's English, you'll see lots of new grammar rules you've never seen before (eg: feminine, masculine, déterminants, etc.) but just follow the step by step learning this site has to offer and don't try to switch to a new lesson before you really understand the last one.
Do at least a little bit of French every day. If you're pressed for time, you can still just do a review lesson or two on duolingo. It's much better to do 20 minutes every day than to not do anything for 5 days and try and do a bunch on the weekend.
Combine other learning methods with duolingo. Check if your local library has resources you can use (including any programs available online). Go onto youtube and find one or more channels teaching French that you like. Do the same with French podcasts. Specific advice for a true beginner: in the next few weeks go over some videos that recite the alphabet in French, as well as some that demonstrate the different sounds (especially the different vowel sounds). The sounds are one of the hardest things about French (both for listening speaking), so this is something you'll be continually working on as you progress in the language.
It's good to expose yourself to the language with things you enjoy. Find some French songs you like find their lyrics online. Try to follow along. Even if you don't know what the words mean, you'll start to get the sound and feel of the language. As you learn more, you'll be able to pick out more words. Once you get further along, start watching some shows in French with English subtitles.
Above all, have patience. Your progress will seem slow and even non-existent at times, but if you keep up regular practice, you will learn the language.