The Lovers represent a possibility of reunion and hope. This card indicates that there is an opportunity to win your ex back if she is willing to invest time and energy in the process.
Nine of Wands reversed may indicate that you need to be prepared to face difficulties in your quest for recapture. While it is possible, there will be hurdles to overcome before you can actually achieve your goal.
Wheel of Fortune suggests that you must be ready to accept the change that will occur when you try to win your ex back. The Wheel also symbolizes destiny, so you should be aware that even if you do everything possible, you cannot fully control the end result.
Ultimately, these three cards suggest that you still have hope of winning your ex back, but you'll need to be willing to put in the effort and face challenges in the process, and accept that you can't fully control the outcome. Therefore, the answer to your question is yes, you still have hope of winning your ex back.