It's a good tactic to gradually eliminate animal products from your diet instead of going cold turkey. I went the opposite route in the past and hated the experience. I was cranky and hungry all the time. That's why going vegan slowly and at the pace you feel comfortable at and not rushing things is more sustainable in my opinion. Also learning or knowing how to cook food beforehand can help too. Especially, if there's no ready-made vegan food in your area or there's little to no market for vegans. Sadly, this is true for my country. :( Another helpful thing is family's or friends' support. Wish you good luck in your journey of becoming vegan! :)