Culinary Arts I am incapable of performing

There are a few things that I have tried to make unsuccessfully. Number one – Pancakes (the English & SA version) I suppose in the USA it is called crepes. Lamb, who does not cook extremely well is a dab hand at making pancakes. Mine stick to the pan, their either too thick or too thin, not cooked through, they just don’t work. Crumpets I am fine with but still I cannot manage to get them quite like my Grandmother’s. Number two - Roast Beef. I can do the perfect roast chicken, roast leg/shoulder of lamb, pork roast, but I have never been successful with beef. It always comes out tough and awfully dry with very little taste? I wonder what I do wrong? My previous post on England things I miss prompted this trail of thought. It bothers me, because no matter how high the degree of difficulty of a dish, I always manage. So why am I not able to do a relatively simple thing like roast beef? If any of my dishes flop, I instinctively know what to do next time to ensure it doesn’t. I’ll also spend time perfecting a recipe. I have even tried different cuts of beef to no avail. Another one, which is not really cooking related, is Margaritas. I have tried different recipes, I have tried different ratio’s of tequila, triple sec & freshly squeezed lime – no luck. My Margaritas tastes horrible. I’ve also not had much luck with cooking artichokes, but I am not too bothered about that. My favourite dish in the whole wide world is…? Nothing fancy… I think it will have to be Spaghetti Bolognaise, but not any old Spaghetti Bolognaise, like my Grandmother taught my Mum & and later me. She in turn learned from an Italian POW in the 2nd World War.