Reagrouping after allowing an annoying move

In this ELO rated game I played, I was the higher rated player and wanted to go for a win, especially playing with White. I managed to get a comfortable position. Win a pawn and damage black´s pawn structure. I was so comfortable and cruising the game. 

That´s the biggest mistake an intermediate player like me can make. I can live with blunders as I know my level of play will have those occasionally. I try to limit them as much as possible. I can live with getting outplayed strategically by a higher rated player as I know I still have a long way to go in that area. I can live with a missed tactical shot because I need more training. But what I cannot let myself do is relax and think a game is over just because I´m up a pawn and some. A few inaccuracies and it´s a game again. And thinking each and every move is what makes for a better player.

When I realized my opponent made an annoying move I could´ve easily avoided, I needed to maneuver a lot. I got uncomfortable. I let my opponent back in the game. I needed to make six consecutive defensive moves to protect my material advantage. 

Thankfully I managed to regain my momentum and convert in the end, but I would´ve kicked myself if I let this game go for not being careful and think every single move.

Let me know your thoughts, and I hope my analysis of my own games are helpful to other beginners and intermediate players like me. If you want to point another analysis, please do!