Some people when they start training set themselves unrealistic / unachievable goals and when they’re not progressing as fast as they would like to they give up and go back to doing what they were doing before.
It’s better to set yourself short term achievable goals which give you a goal to tick off before progressing onto the next goal.
The short term goals will come around a lot quicker than long term goals and will help you to stay motivated and follow your programme.
Some people aspire to run a full marathon (26.2 miles) which for most people takes at least 6 months of discipline and hard work to train for properly to run the whole distance.
Whilst the marathon is a great event to complete it might be too far for some people who haven’t got the time to put the training in.
A shorter and more achievable distance is a 10k run (6.2 miles) which some people find more enjoyable as they complete it a lot quicker and there are more 10k runs throughout the year then marathons which are good if people are trying to beat their previous times.
You can use a Google search to find all swimming, cycling, running, rowing, triathlon events etc in your local area and you can choose the ones that interest you the most and you think you can work towards to complete. Good luck for any events you enter :)