Having issues with my 2018 Honda Civic

Yesterday while going to the store my car was running good once I came out of the store my car was having trouble starting. I thought the battery might have run out. But that wasn’t the case the battery is good so I changed the fuel pump relay fuse and the car started but it’s still having some trouble starting up. It starts up when I start it but it’s like it burly wants to start I’m not sure what’s the problem. Can someone please give me advice? I’m not sure if it’s a starter problem?