Pruning fruit trees (like apple or pear) has several special considerations. Here is a comprehensive guide to pruning fruit trees for reference. (the link downloads a pdf!)
A good goal for 2019 would be to get a soil test for your garden!
Iowa State University no longer offers soil testing to gardeners. But several independent laboratories will provide this service. Midwest Labs is one recommended provider. Here is more information about garden soil tests and soil tests for lawn.