Am I doing it right?

Hey everyone, I’m a male, in my mid-20s, 5’9,” and a little over 240 lbs. First timer, currently on my 4th week of IF Week 1 — I experimented with 15:9 Week 2-3 — was able to do between 16-18 hours of fasting depending on the day. Week 4 — 18 hours of fasting day going on to 20 hour fast. Even though this is my first time fasting, I’m finding it surprisingly easy. Almost *too* easy. So I’m just wanting to see if I am doing it right. So feel free to share your input or any suggestions: • I fast 5 days a week and eat “normally” on the weekends. • during the fast, I drink only black coffee, herbal tea (no cream or sugar), and room-temp apple cider vinegar water. • in terms of physical activity, I do yoga 6 days a week of varying levels. Recently I’ve been adding 30 minutes of cardio at least 3 times a week. • I break my fast with a light salad (no dressing, just oil & vinegar) and some fresh fruit. • every night I have dinner. Admittedly the food is a little richer, consisting of asian home-cooking. White rice is a staple, usually accompanied with poultry or meat and occasionally fish. Also a side of steamed or stir fried veggies. Though I haven’t really changed the way I cook/eat, I’ve been cutting my portions to half of what I used to eat. • I’ve given up on fast food, but completely cutting out sugar/sweets is still a work in progress. My end goal is to lose weight. I’m hoping to go down to 180 lbs by the end of the year. Is that realistic if I continue to do what I’m doing now?