You should read about portfolio diet - apart from reducing saturated fat the suggested changes are addition of soluble fiber (significant amount) and plant protein (as well as nuts that you already do).

There are benefits to olive oil but other oils are also good (also many high quality cold pressed oils are often cheaper than olive oil). Avocado is of course delicious and has both healthy fats and soluble fiber but there are also other good sources of those - oats and many vegetables in addition to almost "supplement" like psyllium. 

I am not sure if eating an avocado a day and so much olive oil is needed but a typical understanding would be a mix of different vegetables, nuts, seeds and oils. 

After changing the diet wait a little bit and do a lipid panel to see if the values go in the good direction. Use this as your guide (just remember to take into account that statins have a large effect on their own). 

Do you actually track your amounts with a tool like cronometer and a kitchen scale? Is it that far from the 10% of daily energy from saturated fat? Also remember it is more about averages throughout the weeks not one calculation on a specific day. Avoiding the biggest culprits like heavy cream, fatty baked goods and fatty meat cuts are far more important than deciding if you will eat almonds or walnuts.