I couldn't cook to save myself a few years ago but after plenty of practice and time on my hands I can bake a perfect cake and cook really good. So I would say don't rush things and practice

The great old Dame Delia Smith did a beginners guide for those leaving home (going to uni or whatever), I tihnk it's on youtube but it's really good, saved my Niece life!

Cook, cook, cook.

Experiment and practice

my wife tells me that anyone can cook, as long as they can read.  do what it says in the recipe book

When you try something new and it comes out good, having written down your changes is a big help

Don't be afraid to experiment a bit, taste as you go along.

Just practice, learn and practice  

Call your grandmother.

By trying and failing until you get it right.

Don't bother. Just accept you're a disgrace and go to McDonalds. 

Experience is definitely the best way to get better at cooking.

If you're struggling with the basics, follow recipes for a while until you're confident enough to try experimenting a little bit!

Reddit has some good subreddits for beginner cooks, or if you have spare cash (ha ha I know) those meal delivery plans like HelloFresh or whatever are quite good for getting techniques and such down. 

Practice is the key, when I got together with my wife she did all the cooking. So much that I was out of touch with it and when asked toput dinner on a couple of years ago. I put on and didn't think to periodically stir the Spanish chicken, so it burnt to the bottom of the pan. Screwing up the Simpsons lest thing made me realise I needed to cook properly more often and not relyon oven food

I recently purchased a meater temp probe they are great for the kitchen and the bbq brilliant results. general tip add beer or wine to the chef for even better results

Best way is to burn it or under cook it...

Or just experiment with different things