Citrus Banana Cheesecake

• 4 strawberries (fresh)
• 1 gelatin (envelope unflavored)
• 1 banana
• 1 pink grapefruit
• 250 gr cottage cheese
• 160 ml unsweetened grapefruit juice
• 130 gr soft wheat bread crumbs (whole)
• 55 gr artificial brown sugar
• 28 gr margarine
• 26 gr artificial sugar