Calling for my last stage in life, but with making it the best.

Hi everyone and any help out their , on the subject of living , working and surviving in such an amazing and privileged country on this planet ,
I am 58 in January with a lot of energy , English born well welsh actually , same island, worked 15 years then moved to spain, been living here for 29 years worked married and divorced here, I am a chef by trade and have an fantastic awesome partner from south Africa , and we want to so go to Namibia and spend the rest of our days in this country , I am a qualified lecturer and chef by trade , we would like to set up a home from home catering business to start, cookery classes , and English classes, its seems a not so easy as I previously thought setting up this in this neck of the planet , but would like to ask anyone who lives in Namibia and have made a living , for some advice for first come  starters some advice and how to go forward in starting a new life here ................