About a week ago I learned of the existence of something called a Chefs Knife. A knife which makes 90% of your cooking prep easier by _orders of magnitude_.
Bought one yesterday, and after using it I feel like I wasted about 30 years of cooking.
The almost-best one on the market is 40 quid and will last you many, many, many years.
If you like to cook and haven't heard of a chefs knife, please buy one now. I guarantee it will make you happy.