Snacks are absolutely FINE if you’re a newbie and you’re just starting out. A lot of people start out needing them (or feeling like they need them) but as the weeks progress the need, real or perceived, drops off and before you know it you’re totally ok skipping breakfast and eating only two, or even one, meal/s a day.
Just make sure when you eat, your hunger, not your boredom (or habit) is driving it. Those who have commented against snacking are correct, it does unnecessarily raise your insulin which is counter productive to the goal of a ketogenic diet. However if you need to use snacking as a crutch to stay keto early on in your journey then that is A ok too- you won’t need it forever.