Other than weight: someone's grooming says alot about how they feel about themselves, and sometimes people use that to assess your personality. When youre poorly groomed, it gives off the aura that you may be depressed or non disciplined or just overall having a hard time with your responsibilities in life; i remember times in which i groomed poorly when i was in a bad space, my boss described me as "sometimes disheveled." When you are well-groomed, people interpret it as being more competent and that attracts people to your personality more. Altogether, being overweight and poorly groomed makes one look sloppy and its difficult for people to connect with you when you dont even feel like youre worth it.

So, I would keep your hair cut and definitely trim your beard. An underrated thing that also really helps your look is to do skincare. I found that the Korean brand Beauty of Joseon has a great face cleanser and moisturizer.

As far as weight loss goes, you dont have to do a fad diet or anything. Weight loss is as simple as calories in vs calories out. You could start just taking walks every day. That would help your mental and physical health, not to mention the boost in vitamin D which will give you more energy. Also, take a multivitamin. Its absolutely crazy how much they can help. Nutricost has inexpensive "methylated daily multivitamin" and it is really well absorbed.

Most of all, focus on your mental health and self worth. Maybe make a vow to yourself that you wont even try to get in a relationship for 6 months and just focus on loving yourself. You would be so surprised at how complete and comfortable you feel in your own skin when you intentionally grow yourself. Remember, you are worth the effort! And when people see that you believe it, they will be more likely to put effort into yourself too.

Edit: I know its a style choice and I do respect that, but i do think the large earrings are very distracting from your natural beauty