As a Support, you’re quite vulnerable and can easily be killed when going to ward, when you’re moving around the map, and when you’re alone. To reduce the chances of dying and getting caught out of position, try and stick with your team at all times.
Keep a constant eye on what major objective is spawning next. If it’s spawning soon, make sure you place vision around the objective as quickly and as safely as possible before retreating to safety. Having vision around major objectives is key.
Look for picks during the mid-game. If you can pick someone off with the help from your allies, you can abuse their death timer to earn more gold and possibly take a tower, an objective or get more kills.