Could it also be that you don;t have enough points to level a skill up? Basically, if the arrows are not there, then you can't level that skill up. So, if you see arrows in Ground but not Space, well there's your sign.
On a related note, burn that token. Heck, buy more if you must. Don't think you have one shot to "get it right". Tweak your character to get what's perfect for you!
BUT - use tools if they are available. On the stick list in this forum is one for a Skill Planner from STO Academy. The guy really built a solid system. I recommend reading the Help Guide (since I didn't and I spent time learning the hard way) and you can make a decenet plan to help reduce your respec concerns.