1700 isn't really an accomplishment.
1800+ is and even then it's not much.
If you're solo que heroes that have gank / semi-carry potential are usually the best to go for.
Hero's like: Monkey King, Pebbles, Fayde, Bubbles, Nomad ect.
You want to end the game as early as possible and rely mainly on yourself to win the game.
- If you don't get wards, place one yourself (100g is nothing to have control of runes, vision).
- If you don't get an upgraded courier, do it yourself.
- Always carry a TP scroll, send one middle ASAP to help gank other lanes or save them from ganks/tower dives [Biggest tip/easiest kills].