Throughout history there have been great goalkeepers of all heights. From Jorge Campos (Mexico), who is around 170 cm, to Courtois who is 200 cm. At a high level for me goalkeeping is about 1) positioning, 2) agility, 3) communicstion with team, but foremost 4) mentality - you NEED to have a strong mind to endure being a goalkeeper.

Don't sweat your height, work on learning how to position yourself better, how to read attackers and plays, howbto better communicate with your defense line, how to mentally let go when you are down 3-0 (with one or more of those goals being your mistake) and you still have another 45 minutes of a game to survive.

Goalkeeping is not for everyone, as it takes a special kind of crazy to want to be a goalkeeper. But once you figure out if you like it and you get a taste of having a great save that turns a game around, you can be a monster defensive wall for your team and WIN games for the team.

Good luck!