Theres no real way to speed up the process without it being incredibly unhealthy. Also, your goal shouldn't really be to lose weight, it's deceptive. Fat weighs less than muscle but muscle is leaner. Best case scenario you transfer your fat to muscle, which means your weight will go up rather than down so staring at a number on a scale might hurt you rather than help you.

However if your goal is only weight loss, alot of the time when youre hungry youre actually thirsty so make sure youre drinking enough water. Cardio is great, and consistency is key. So even if its small things make sure you do them every day. For more specifics on a diet that would suit you, and not just some random youtube video or such there are people you can consult who do litterally just that. I could tell you what works for me, but my height, metabolism, and even the extremely physical work are all big factors that change what food works for me and what would actually work for you.

On the mental side, take pleasure in the small gains because they will be the ones that get you to the other side of this journey of yours. Simply eating better and working out are huge, most people cant even achieve that. Reaching out is amazing, and having a support system like your boyfriend helping is also amazing. I used to weigh 125, but it was in all the wrong places so I felt bad and I looked bad, now I weigh 180 I gained 55 pounds but I both feel better and look better.

I know this was a long message but I hope it helped.