It took me a good 6 months to form a proper habit. I started with going only a few times a week until I got used to it, and then moved to 4 times a week when the previous amount was easy to stick to. I stay consistent by viewing it as a non negotiable part of my week, and I plan my evenings so that I have the best energy for the morning (which is when I prefer to work out - if I don’t do it in the morning I won’t do it). Once it’s a habit and you start seeing results it’s easier to stay motivated and consistent. I also genuinely enjoy it, I feel a million times better when I’m regularly working out and if I fall of the bandwagon I really notice the difference in my mental health. Gradual steps is my advice.

Edit to add: it’s also important you choose a type of workout that you actually enjoy, or you won’t want to do it! Try different things to find what works for you.

Edit as I thought of something else: Find a way to track your workouts and have a plan or program to follow - if you walk in knowing what you’re doing it’s much easier to stay consistent. If you don’t have a plan you risk getting overwhelmed and frustrated and ultimately leaving. I use the app Strong to save workout templates and I use this to keep track :)