The number is in your phone. You have had three weeks to make the request. Instead, you keep rehearsing how to ask without sounding as though you need anything. Hebrews invites people with needs to approach a merciful High Priest.
When Jesus died, the curtain tore from top to bottom (Matthew 27:51). Hebrews says we now enter "by a new and living way" (10:20). The word translated "confidence" is parrēsia. It carries the sense of boldness and frank speech, the freedom to say what you actually need.
Verse 15 tells us why: our high priest has been tempted in every way, yet without sin. He understands. The door is open, and He wants to hear exactly what you need.
Approach through the High Priest
Hebrews grounds confidence in Jesus, the great High Priest who understands weakness. The invitation to approach follows that account of Him. Our confidence rests on His mercy rather than on our skill at being spiritually impressive.
Read the words about mercy and grace in time of need. Need is part of the invitation. You don't have to wait until you can describe the problem without embarrassment.
Bring one specific request to God. If prayer has become a report on how well you're coping, leave room for the thing you can't manage. Receiving help may also mean asking someone trustworthy to pray with you. The passage makes room for dependence.
Ask without the performance
Pray for the help you actually need. If another person can offer practical support, ask her too. You can stop explaining just before you start trying to prove you deserve it.
A question to sit with
What request have I hidden beneath so much hedging that I barely say it?
You can take this slowly.