Hi & Welcome - Though I haven’t had to deal with the same issues you have I say never give up hope!! Making a step forward for health is always an A+. I'm 52; I started reading MDA the first of this year and joined in April. I've seen slow but sure changes, starting @ 168lbs - this morning I weighed in @ 150lbs – yeah
Best advice I can give is to be patient and be honest with youself – My biggest stumbling block has been nuts, seeing all the good recipes for desert & pizza using almond flour was just another way to fall into bad habits. Some do okay, not me - everyone is different.
There is a lot of good information on this site - read and make it work for you -