The Knight of Pentacles indicates that someone is making an effort to seek a solution to the situation under consideration. This suggests that there is a good chance that we are on the right track with regards to long-term mental health. This person's close attention can offer protection from common problems and, when applied correctly, can help you achieve your goals.
The Eight of Wands indicates that there is some sense of isolation and lack of control in the situation at hand. This could mean that your actions have not had the desired impact and that you have to face the challenge of your long-term mental health on your own. You may also feel stuck and unable to get out of the situation, as if all your efforts have been in vain.
The reversed Ace of Swords indicates that there is a negative attitude towards your long-term mental health concerns. You may be afraid or not know how to deal with this situation or feel like you can't control it properly. There may also be a sense of shock or disbelief, as if you can't believe something like this is happening to you.
Bottom line, the cards indicate that you need to pay more attention to your long-term mental health and take the right precautions. However, it is also important to approach the situation with balance and confidence, as even the greatest challenges can be overcome with the help of the right people and a positive attitude. The answer to the question is therefore: Yes, it is important to take precautions regarding your long-term mental health.