Welcome Mickee. I'm with Ilene on the motivation part. Joining a running club, entering races and trying to get better, hanging out with and running with other runners who are good, are all good motivators. But in the end, it has to come from you. There must be a reason why you are doing it. Explore what that is and leverage it.
If you are in the Couch to fiveK plan, then use your fiveK as a benchmark time and get competitive about it. Vow to break that time next race. Slowly increase your mileage (there's a good goal), slowly build up your weekly long run (that's another one). There are people here who are such veterans of running and racing, such as Fred, Ksrunr, Raider and Jim24315, they don't need to examine their motivation. They have always wanted to succeed, and continue to run hard. I don't think they are examining or questioning their motivation at any time.
5 miles walking for me today in 1:28. I should do 25 or so this week. Last week was 23. Spareribs