Soon I will be returning to live in Cameroon, Africa and want to continue gardening there. I would like advice about vegetable gardening. I have tried some, but have had mixed results. Pole beans do well, but my tomatoes grow and then fade and die. Carrots, dill don't seem to do well. I did have good luck with cucumbers.

We live in a area that gets lots of rain and there are many bugs and fungi around.

Any hints to deal with and amend conditions so I can get a good around garden would be great. Thank you.